Rainfall in most of the Sahara is________.A) less than five inches per year B) less than ten inches per year C) less than twenty inches per year D) zero

题目

Rainfall in most of the Sahara is________.

A) less than five inches per year
B) less than ten inches per year
C) less than twenty inches per year
D) zero

相似考题

1.You should work for __________ if you become an editor of the magazine.A. just nine hours a dayB. no less than nine hours a day C. about ten hours a dayD. less than 25 hours a week

2.What is an advantage of diesel over steam turbine propulsion ________．A.Less fuel consumption per SHPB.Diesel fuel costs less than bunker C or its equivalentC.Less routine maintenance requiredD.Less weight per SHP

3.The governor brake shall be capable of controlling the speed of lowering a fully equipped lifeboat with its complement of persons on board at ______．A.safe speed only specifiedB.not less than 120 feet per minuteC.not more than 120 feet per minuteD.not more than 90 feet per minute

4.How many minutes early is a job applicant often expected to arrive for the interview?A.Over ten.B.No more than ten.C.At most five.D.No less than five.

参考答案和解析

答案：B

解析：

更多“Rainfall in most of the Sahara is________.A) less than five inches per year B) less than ten inches per year C) less than twenty inches per year D) zero”相关问题

第1题：

If you do NOT understand the course or intention of an approaching vessel you should sound ___________.
A.one short blast
B.one prolonged blast
C.not less than five short blasts
D.not less than five prolonged blasts

正确答案：C
如果你不了解它船的航向操作信息，你将鸣放至少五短声。
第2题：

共用题干
第一篇

The Sahara

The name Sahara derives from the Arabic word for"desert"or"steppe".At 3.5 million square miles,
an area roughly the size of the United States,the Sahara Desert in northern Africa is the largest desert in the
world.It spans the continent from the Atlantic Ocean to the Red Sea. Daytime temperatures can reach as high
as 130°F.The humidity sometimes gets into the teens.But it can also be as low as 2.5 percent,the lowest in
the world.Most of the Sahara receives less than five inches of rain per year,while large areas sometimes have
no rainfall at all for years.
At the heart of the Sahara is the landlocked north African country of Niger. Here the sand dunes can be
100 feet tall and several miles long. Here sand plains stretch over an area larger than Germany where there is
neither water nor towns.Yet sitting in the midst of the surrounding desert is the town of Bilma. Suddenly there
are pools of clear water. Surprisingly,there are groves of date palms.Underground water resources,or oases,
sufficient to support irrigated agriculture are found in dry stream beds and depressions.Irrigation ditches run
off a creek to water fields.Corn,cassava,tea,peanuts,hot peppers,and orange,lime,and grapefruit trees grow
in these fields.Donkeys and goats graze on green grass.
The Sahara of Niger is still a region where you can see a camel caravan of 500 camels tied together in
loose lines as long as a mile,traveling toward such oasis towns.There a caravan will collect life-sustaining
salt,which is mined from watery basins,and transport it up to 400 miles back to settlements on the edges of
the desert.The round trip across the vast sands takes one month.

Rainfall in most of the Sahara is_______________.
A:less than five inches per year
B:less than ten inches per year
C:less than twenty inches per year
D:zero

答案：A
解析：
本题问的是：这篇文章主要讲了什么？本文主要介绍了撒哈拉沙漠的地理位置、气候概况、农业和交通运输状况。B选项范围过宽。C选项不全面，文章不只介绍了比尔马的情况。D选项文中没有具体介绍。所以A是对的。
本题问的是：在撒哈拉的绝大多数地区，降雨情况如何？根据第一段的最后一句话，撒哈拉的绝大多数地区每年降雨量低于5英寸。所以A正确。
本题问的是：撒哈拉沙漠可以被描述成什么？A项的意思是，一个具有强烈对比的地方。B项的意思是杳无人烟的地方。C项的意思是冬天很冷的地区。D项的意思是吸引很多游客的地方。B、C、D项均不符合文意，A项说的对比可以在湿度高低、沙漠与绿洲的对比等方面找到，因此A正确。
本题问的是：短语“大约和美国大小相当的地区”指的是什么地方的大小？根据第一段的第二句话可知，本句的主语是撒哈拉沙漠。因此C正确。
本题问的是：文中“caravan”的意思是什么？A项的意思是旅行马戏团。C项是火车。D 项是又小又快的帆船。根据文中的介绍，穿过沙漠的驼队由上百只骆驼组成，来到绿洲城镇收集盐，因此B选项“一群人一起穿过条件恶劣的国家”是正确的。第二篇本文的主要内容是：蚂蚁通过筑巢和其广泛的捕食方式改善了土壤结构。在数量不是很大时，它们的存在有利于其他动物群体密度和多样性的增加，对环境的影响很大。因此，蚂蚁被称为“生态系统的工程师”。
第3题：

Comco, Inc. became the leading supplier of computer ___last year, less than ten years after it was founded.

A. amounts
B. types
C. kinds
D. parts

答案：D
解析：
本题考查名词辨析。此处句意为“康可公司去年成为计算机零部件的主要供应商，这距它成立不到十年”，故选择parts。其他选项的词义不符合句意。
第4题：

资料：Up to 80 per cent of the world’s middle classes will live in developing countries by 2030 thanks to surprising recent gains in poverty reduction, according to a United Nations report published on Thursday.
“Never in history have the living conditions and prospects of so many people changed so dramatically and so fast.” concludes the UN’s latest Development Report. “The world is witnessing an epochal ‘global rebalancing’.”
Underpinning the improvements in the human development index（HDI） was rapid growth in countries such as China, India and Brazil, with China and India having doubled per capita economic output in less than 20 years. But the study stressed that growth and improvements in HDI spread far beyond the four Bric countries of Brazil, Russia, India and China, and included at least 40 countries that had accompanied greater economic dynamism with effective poverty-reduction policies.
Afghanistan, Sierra Leone, Ethiopia, Rwanda and Angola were among 14 countries that have recorded gains in HDI of more than 2 per cent a year since 2000. Partly as a result, the report found that worldwide extreme income poverty has plunged from 43 per cent in 1990 to just 22 per cent in 2008, including more than 500m being lifted out of poverty in China alone. The report stated that such gains had already helped the world achieve the main poverty eradication goal of the so-called Millennium Development Goals, which called for the share of people living on less than $1.25 a day to be cut by half from 1990 to 2015.
Underpinning this poverty reduction was developing countries’ increasing share of global trade, which grew from 25 per cent to 47 per cent between 1980 and 2010. “The south as a whole is driving global economic growth and societal change for the first time in centuries,” says the report.
The report found that trade among developing countries was the biggest factor in that expansion, increasing from less than 10 per cent of total global trade to more than 30 per cent. “Trade between countries in the south will overtake that between developed nations,” the report said.

The passage mainly ______.

A.discuss why developing countries are playing major role
B.illustrate a theory for poverty reduction
C.explain reasons behind a report
D.interpret the role of trade for developing countries

答案：C
解析：
本题考查的是主旨大意。
【关键词】mainly
【主题句】第1自然段Up to 80 per cent of the world’s middle classes will live in developing countries by 2030 thanks to surprising recent gains in poverty reduction, according to a United Nations report published on Thursday.联合国昨日发布的一份报告称，由于最近几年扶贫工作取得意外进展，到2030年全球多达80%的中产阶级将生活在发展中国家。
【解析】本题的问题是“文章主要______”。A选项“讨论发展中国家扮演重要角色的原因”，B选项“阐述减少贫困的理论”，C选项“解释报告背后的原因”，D选项“说明发展中国家贸易的作用”。此类报道型文体一般开篇明义，点明主题，根据主题句，本文主题是根据联合国发表的报告，解释发展中国家经济发展对世界减少贫困工作起到重要作用的原因。因此，选项C正确。
第5题：

Injuries from rear-end ______ were down，which could mean more than $45 million saved on accident damage per year.

A.collisions
B.combats
C.contradictions
D.conflicts

答案：A
解析：
选项A意为“碰撞”；选项B意为“战斗”；选项C意为“矛盾”；选项D意为“冲突”。根据题干，题目意为“尾部冲撞造成的伤害有所减少，这可能意味着每年节省下来超过4500万美元的意外事故损失。” rear-end collision为固定搭配，意为“追尾相撞”，故选A。
　　
第6题：

Which statement is NOT a key QoS recommended requirement for voice bearer traffic?（）
- A、Voice traffic should be marked to DSCP EF per the QoS baseline and RFC3246.
- B、Voice traffic loss should be no more than 3%.
- C、One-way latency （mouth-to-ear） should be less than 150 msec.
- D、Average one way jitter should be targeted to less than 30 msec.
- E、21-320 Kbps of guaranteed priority bandwidth is required per call depending on sample rate，codec，and layer 2 overhead.
正确答案:B
第7题：

单选题
Sharing accommodation may be ______.
A
approximately A$10, 000 per year cheaper than living alone.
B
more expensive than living alone.
C
not suitable for some students.
D
suitable for most students.

正确答案： C
解析：
根据题干关键词Sharing accommodation定位到原文第三段的第一句“Those who are prepared to live in shared accommodation, which may not be suitable for all, might manage on A $10,000 per year”, 文中没有对比合租和自己住的价格，所以选项A、B不正确。原文中提到合租并不适合所以人，但是不意味着大多数人都不适合，所以选项D有些过度推理。因此，运用排除法，选择C.。
第8题：

单选题
If you do NOT understand the course or intention of an approaching vessel you should sound （）.
A
one short blast
B
one prolonged blast
C
not less than five short blasts
D
not less than five prolonged blasts

正确答案： A
解析：暂无解析
第9题：

单选题
The signal for a fire emergency on an OSV is（）.
A
a 30 second on 30 second off alternating signal
B
the continuous blast of the ships whistle for not less than 10 seconds supplemented by the continuous ringing of the general alarm bells for not less than 10 seconds
C
an intermittent ringing of the general alarm for not less than ten seconds
D
announced over the PA system

正确答案： C
解析：暂无解析
第10题：

填空题
On Mindy's guitar, the frequency of a vibrating string varies inversely as the length of the string. When a guitar string of s inches in length that vibrates at a frequency of 80 cycles per second is shortened to 6 inches in length, it vibrates at a frequency of 120 cycles per second. What is the value of s?____

正确答案： 9
解析：
根据题干可列出等式a_lb₁＝a₂b₂，(s)(80)＝(6)(120)，s=9。
第11题：

单选题
A flashing light is a light that（）.
A
flashes at regular intervals at a frequency of 120 flashes or more per minute
B
is yellow in color
C
is visible over an arc of the horizon of not less than 180°nor more than 225°
D
All of the above

正确答案： B
解析：暂无解析
第12题：

单选题
Two boards are being cut for a construction project. If the total length of the boards is 100 inches and the shorter board is 5 inches less than half the length of the longer board, what is the length of the shorter board?
A
25 inches
B
30 inches
C
35 inches
D
65 inches
E
70 inches

正确答案： B
解析：
设长板的长度为x，短板的长度为y，故x+y=100，y=0.5x-5，故y=30，所以本题选B项。
第13题：

What does the survey indicate?

A Many poor Americans want large portions.
B Twenty percent Americans want smaller portions.
C Fifty seven percent Americans earn $150 ，000 per year.
D Twenty three percent Americans earn less than $25，000 per year.

答案：A
解析：
第14题：

Investment Tips

By Scott Russell

Investing in stocks that are less than $5 per share is a good way to boost your stock portfolio. Many big investors ignore these stocks because of the potential risks involved, however, these stocks often grow significantly over the course of time. Investing in inexpensive stocks is a wise move, provided that you hold on to them for at least one year to allow enough time for them to develop.

Four stocks that I suggest for less than $5 per share are High Standard Pharmaceuticals Company, Nova Oil, Inc., Direct Access Publishing Group, and Peak Media Holdings. If you are new to the market, you might want to try investing in them through an online brokerage firm that does not charge a high commission for their services, and remember: only invest up to five percent of your entire stock portfolio in any stock, including these.
------------------------------------------------------------------------------------------------------------------------------
Quick Stock Quotes -- Thursday April 22 -- 2:40 P.M.
(Quotes delayed by 20 minutes)
Nova Oil, Inc. (NOI)
3.93 +0.08 +2.08%

Previous Close 3.85
Open 3.87
High 3.94
Low 3.79
Volume 864,300
Bid 3.91
Bid Size 600
Ask 3.97
Ask Size 3,300
52 Week range 1.64-8.90
At what price did the company's stock close on the previous day?

A. $3.79 per share

B. $3.85 per share

C. $3.91 per share

D. $3.93 per share

答案：B
解析：
第15题：

资料：Up to 80 per cent of the world’s middle classes will live in developing countries by 2030 thanks to surprising recent gains in poverty reduction, according to a United Nations report published on Thursday.
“Never in history have the living conditions and prospects of so many people changed so dramatically and so fast.” concludes the UN’s latest Development Report. “The world is witnessing an epochal ‘global rebalancing’.”
Underpinning the improvements in the human development index（HDI） was rapid growth in countries such as China, India and Brazil, with China and India having doubled per capita economic output in less than 20 years. But the study stressed that growth and improvements in HDI spread far beyond the four Bric countries of Brazil, Russia, India and China, and included at least 40 countries that had accompanied greater economic dynamism with effective poverty-reduction policies.
Afghanistan, Sierra Leone, Ethiopia, Rwanda and Angola were among 14 countries that have recorded gains in HDI of more than 2 per cent a year since 2000. Partly as a result, the report found that worldwide extreme income poverty has plunged from 43 per cent in 1990 to just 22 per cent in 2008, including more than 500m being lifted out of poverty in China alone. The report stated that such gains had already helped the world achieve the main poverty eradication goal of the so-called Millennium Development Goals, which called for the share of people living on less than $1.25 a day to be cut by half from 1990 to 2015.
Underpinning this poverty reduction was developing countries’ increasing share of global trade, which grew from 25 per cent to 47 per cent between 1980 and 2010. “The south as a whole is driving global economic growth and societal change for the first time in centuries,” says the report.
The report found that trade among developing countries was the biggest factor in that expansion, increasing from less than 10 per cent of total global trade to more than 30 per cent. “Trade between countries in the south will overtake that between developed nations,” the report said.

“More than 500m being lifted out of poverty in China alone” illustrates ______.

A.the economic development of China is important
B.the role of some developing countries is significant for poverty reduction
C.14 countries are developing faster than China
D.it is crucial to make a clear goal first

答案：B
解析：
本题考查的是细节理解。
【关键词】More than 500m being lifted out of poverty in China alone
【主题句】第4自然段Afghanistan, Sierra Leone, Ethiopia, Rwanda and Angola were among 14 countries that have recorded gains in HDI of more than 2 per cent a year since 2000. Partly as a result, the report found that worldwide extreme income poverty has plunged from 43 per cent in 1990 to just 22 per cent in 2008, including more than 500m being lifted out of poverty in China alone. 自2000年以来，有14个国家的人类发展指数出现了每年逾2%的增长，其中包括阿富汗、塞拉利昂、埃塞俄比亚、卢旺达和安哥拉。报告发现，这在一定程度上导致极端收入贫困比例从1990年的43%降至2008年的仅有22%，其中仅中国一个国家就有逾5亿人脱贫。
【解析】本题的问题是“‘其中仅中国一个国家就有逾5亿人脱贫’阐明了______”。A选项“中国的经济发展十分重要”，B选项“在扶贫工作中，一些发展中国家角色举足轻重”，C选项“14个国家比中国发展更迅速”，D选项“首先树立清晰目标至关重要”。根据主题句和第3自然段可知，发展中国家经济发展对消除世界贫困人口意义十分重大，因此，选项B正确。选项A过于片面，选项C文中没有将14个国家和中国经济发展进行比较，选项D属于主观臆断。
第16题：

资料：Up to 80 per cent of the world’s middle classes will live in developing countries by 2030 thanks to surprising recent gains in poverty reduction, according to a United Nations report published on Thursday.
“Never in history have the living conditions and prospects of so many people changed so dramatically and so fast.” concludes the UN’s latest Development Report. “The world is witnessing an epochal ‘global rebalancing’.”
Underpinning the improvements in the human development index（HDI） was rapid growth in countries such as China, India and Brazil, with China and India having doubled per capita economic output in less than 20 years. But the study stressed that growth and improvements in HDI spread far beyond the four Bric countries of Brazil, Russia, India and China, and included at least 40 countries that had accompanied greater economic dynamism with effective poverty-reduction policies.
Afghanistan, Sierra Leone, Ethiopia, Rwanda and Angola were among 14 countries that have recorded gains in HDI of more than 2 per cent a year since 2000. Partly as a result, the report found that worldwide extreme income poverty has plunged from 43 per cent in 1990 to just 22 per cent in 2008, including more than 500m being lifted out of poverty in China alone. The report stated that such gains had already helped the world achieve the main poverty eradication goal of the so-called Millennium Development Goals, which called for the share of people living on less than $1.25 a day to be cut by half from 1990 to 2015.
Underpinning this poverty reduction was developing countries’ increasing share of global trade, which grew from 25 per cent to 47 per cent between 1980 and 2010. “The south as a whole is driving global economic growth and societal change for the first time in centuries,” says the report.
The report found that trade among developing countries was the biggest factor in that expansion, increasing from less than 10 per cent of total global trade to more than 30 per cent. “Trade between countries in the south will overtake that between developed nations,” the report said.

The word “underpinning” in the passage refers to ______.

A.blocking
B.undergoing
C.supporting
D.stressing

答案：C
解析：
本题考查的是词义理解。
【关键词】underpinning
【主题句】第3自然段Underpinning the improvements in the human development index（HDI） was rapid growth in countries such as China, India and Brazil, with China and India having doubled per capita economic output in less than 20 years. 支持人类发展指数（HDI）取得进步的是中国、印度和巴西等国经济的迅速增长，中国和印度的人均经济产值在不到20年的时间里增长了一倍。
【解析】本题的问题是“underpinning这个词在文中指的是？”A选项“阻塞”，B选项“经历，承受”，C选项“支持”，D选项“强调，加压”。underpinning这个词本身的意思是基础，支持，支撑，文中指的是支持人类发展指数（HDI）取得进步，因此，选项C正确。
第17题：

共用题干
第三篇

The Sahara

The name Sahara derives from the Arabic word for"desert"or"steppe".At 3.5 million square miles,
an area roughly the size of the United States,the Sahara Desert in northern Africa is the largest desert in the
world.It spans the continent from the Atlantic Ocean to the Red Sea.Daytime temperatures can reach as high
as 130°F.The humidity sometimes gets into the teens.But it can also be as low as 2.5 percent,the lowest in
the world.Most of the Sahara receives less than five inches of rain per year,while large areas sometimes have
no rainfall at all for years.
At the heart of the Sahara is the landlocked north African country of Niger. Here the sand dunes can be
100 feet tall and several miles long.Here sand plains stretch over an area larger than Germany where there is
neither water nor towns.Yet sitting in the midst of the surrounding desert is the town of Bilma. Suddenly there
are pools of clear water. Surprisingly,there are groves of date palms.Underground water resources,or oases,
sufficient to support irrigated agriculture are found in dry stream beds and depressions.Irrigation ditches run
off a creek to water fields.Corn,cassava,tea,peanuts,hot peppers,and orange,lime,and grapefruit trees grow
in these fields.Donkeys and goats graze on green grass.
The Sahara of Niger is still a region where you can see a camel caravan of 500 camels tied together in
loose lines as long as a mile,traveling toward such oasis towns.There a caravan will collect life-sustaining
salt,which is mined from watery basins,and transport it up to 400 miles back to settlements on the edges of
the desert.The round trip across the vast sands takes one month.

Rainfall in most of the Sahara is_______.
A:iess than five inches per year
B:less than ten inches per year
C:less than twenty inches per year
D:zero

答案：A
解析：
本题问的是：这篇文章主要讲了什么？本文主要介绍了撒哈拉沙漠的地理位置、气候概况、农业和交通运输状况。B选项范围过宽。C选项不全面，文章不只介绍了比尔马的情况。D选项文中没有具体介绍。所以A是对的。
本题问的是：在撒哈拉的绝大多数地区，降雨情况如何？根据第一段的最后一句话，撒哈拉的绝大多数地区每年降雨量低干5英寸。所以A正确。
本题问的是：撒哈拉沙漠可以被描述成什么？A项的意思是，一个具有强烈对比的地方。B项的意思是青无人烟的地方。C项的意思是冬天很冷的地区：D项的意思是吸引很多游客的地方。B、C、D项均不符合文意，A项说的对比可以在湿度高低、沙漠与绿洲的对比等方面找到，因此A正确。
本题间的是：短语“大约和美国大小相当的地区”指的是什么地方的大小7根据第一段的第二句话可知，本句的主语是撒哈拉沙漠。因此C止确。
本题问的是：文中“caravan”的意思是什么？A项的意思是旅行马戏团：C项是火车。B 项是又小又快的帆船。根据文中的介绍，穿过沙漠的驼队由上百只骆驼组成，来到绿洲城镇收集盐，因此B选项“一群人一起穿过条件恶劣的国家”是正确的。第5部分：补全短文
第18题：

单选题
Advertisement: The most flavorful olives in the world are kalamata olives. The more kalamata olives used to make a bottle of olive oil, the more flavorful the oil, and no company buys more kalamata olives than Zorba’s Olive Oil. Therefore, when you buy Zorba’s Olive Oil, you’re buying the most flavorful olive oil available today.　 The reasoning presented in the advertisement is flawed because it overlooks the possibility that:
A
Not all of Zorba’s competitors use kalamata olives in their oil.
B
Zorba’s sells more olive oil than any other company.
C
The most flavorful olive oil is not necessarily the best olive oil.
D
Because of bulk discounts, Zorba’s pays less per kilogram of kalamata olives than does its competitors.
E
The number of kalamata olives harvested every year is far less than the number of Spanish olives harvested every year.

正确答案： B
解析：
推理过程中只强调Zorba公司购买卡拉马塔橄榄油的总量多，但是不能确定其每瓶油中橄榄油的量，故本题应选B项。
第19题：

单选题
Operating a propulsion diesel engine at less than 30% of designed normal load for prolonged periods will result in （）.
A
decreased fuel consumption per brake horsepower
B
more complete cylinder scavenging
C
extended valve life
D
carbon formation on combustion chamber surfaces

正确答案： B
解析：暂无解析
第20题：

单选题
What is an advantage of diesel over steam turbine propulsion? （）
A
Less fuel consumption per SHP
B
Diesel fuel costs less than bunker C or its equivalent
C
Less routine maintenance required
D
Less weight per SHP

正确答案： C
解析：暂无解析
第21题：

单选题
Although many people would not believe it, the mosquito is actually the most dangerous animal in Africa. While the bite of the black mamba is invariably lethal when untreated, this dreaded snake kills only a few dozen people per year. Hippopotami, with their immense strength and foul dispositions, kill hundreds of people per year in rivers and lakes, but the mosquito is still more dangerous. Mosquitoes bite hundreds of millions of people in Africa every year, and they infect over a million each year with malaria, a disease that is often fatal.　 Which of the following questions would be most useful in evaluating the claim made above regarding the mosquito?
A
Could a person survive an attack by a black mamba if that person received prompt medical attention?
B
What criteria are used to determine which animal is the “most dangerous” animal?
C
Could the incidence of mosquito bites be decreased through the judicious use of pesticides and insect repellent?
D
Does malaria kill more people per year in Africa than tuberculosis?
E
How does the percentage of people who survive hippopotamus attacks in Africa each year compare with the percentage of people who survive mosquito bites?

正确答案： C
解析：
文段中对于非洲蚊子的结论是：“the mosquito is actually the most dangerous animal in Africa.”，之后作者比较了蚊子和其他生物的致死率的数据，故B问题能更好的帮助我们估计这一结论，故本题选B。
第22题：

单选题
Which statement is NOT a key QoS recommended requirement for voice bearer traffic?（）
A
Voice traffic should be marked to DSCP EF per the QoS baseline and RFC3246.
B
Voice traffic loss should be no more than 3%.
C
One-way latency （mouth-to-ear） should be less than 150 msec.
D
Average one way jitter should be targeted to less than 30 msec.
E
21-320 Kbps of guaranteed priority bandwidth is required per call depending on sample rate，codec，and layer 2 overhead.

正确答案： A
解析：暂无解析
第23题：

单选题
The governor brake shall be capable of controlling the speed of lowering a fully equipped lifeboat with its complement of persons on board at（）.
A
safe speed only specified
B
not less than 120 feet per minute
C
not more than 120 feet per minute
D
not more than 90 feet per minute

正确答案： A
解析：暂无解析

Rainfall in most of the Sahara is________.A) less than five inches per year B) less than ten inches per year C) less than twenty inches per year D) zero

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