此题为判断题(对,错)。
第1题:
检索那些城市至少有一个仓库的职工年龄在60以上,正确的命令是( )。
A.SELECT 城市 FROM 仓库 WHERE 仓库号 IN; SELECT 仓库号 FROM 职工 WHERE 年龄>60
B.SELECT 城市 FROM 仓库 WHERE 仓库号 IN; (SELECT 仓库号 FROM 职工 WHERE 年龄>60)
C.SELECT 仓库号 FROM 职工 WHERE 年龄>60 IN; SELECT 城市 FROM 仓库 WHERE 仓库号
D.SELECT 仓库号 FROM 职工 WHERE 年龄>60 IN; (SELECT 城市 FROM 仓库 WHERE 仓库号)
第2题:
第3题:
3、我国中等收入阶层人数已达3亿,占全球中等收入群体的30%。
A.China's mid-income class has reached 300 million, accounting for 30% of the middle-income group globally.
B.China's mid-income class has reached 3 billion, accounting for 30% of the middle-income group globally.
C.China's mid-income class amounted to 30 million, accounting for 30% of the middle-income group globally.
D.China's mid-income class amounted to 3000 million, accounting for 30% of the middle-income group global
第4题:
检索那些城市至少有一个仓库的职工年龄在60以上,正确的命令是( )。
A.SEIECT 城市 FROM 仓库 WHERE 仓库号 IN; SELECT 仓库号 FROM 职工 WHERE 年龄>60
B.SELECT 城市 FROM 仓库 WHERE 仓库号 IN; (SELECT 仓库号 FROM 职工 WHERE 年龄>60)
C.SELECT 仓库号 FROM 职工 WHERE 年龄>60 IN; SEIECT 城市 FROM 仓库 WHERE 仓库号
D.SELECT 仓库号 FROM 职工 WHERE 年龄>60 IN; (SELECT 城市 FROM 仓库 WHERE 仓库号)
第5题:
我国中等收入阶层人数已达3亿,占全球中等收入群体的30%。
A.China's mid-income class has reached 300 million, accounting for 30% of the middle-income group globally.
B.China's mid-income class has reached 3 billion, accounting for 30% of the middle-income group globally.
C.China's mid-income class amounted to 30 million, accounting for 30% of the middle-income group globally.
D.China's mid-income class amounted to 3000 million, accounting for 30% of the middle-income group global
第6题:
【单选题】我国中等收入阶层人数已达3亿,占全球中等收入群体的30%。
A.China's mid-income class has reached 300 million, accounting for 30% of the middle-income group globally.
B.China's mid-income class has reached 3 billion, accounting for 30% of the middle-income group globally.
C.China's mid-income class amounted to 30 million, accounting for 30% of the middle-income group globally.