参考答案和解析
正确答案:B
更多“下列属于Light标准的是()”相关问题
  • 第1题:

    A vessel trawling will display a ______.

    A.red light over a white light

    B.green light over a white light

    C.yellow light over a red light

    D.white light over a green light


    正确答案:B

  • 第2题:

    阅读下列说明和C++代码,回答问题,将解答填入答题纸的对应栏内。
    【说明】
    某灯具厂商欲生产一个灯具遥控器,该遥控器具有7个可编程的插槽,每个插槽都有开关按钮,对应着一个不同的灯。利用该遥控器能够统一控制房间中该厂商所有品牌灯具的开关,现采用Command(命令)模式实现该遥控器的软件部分。Command模式的类图如下图所示。

    【C++代码】

    class Light {public: Light(stringname) { /* 代码省略 */ } void on() {/* 代码省略 */ } // 开灯 void off() {/* 代码省略 */ } // 关灯};class Command {public: (1) ;};class LightOnCommand:public Command { // 开灯命令private: Light* light;public: LightOnCommand(Light* light) { this->light=light; } voidexecute() { (2) ; }};class LightOffCommand:public Command { // 关灯命令private: Light *light;public: LightOffCommand(Light* light) { this->light=light; } voidexecute() { (3) ; }};class RemoteControl{ // 遥控器private: Command*onCommands[7]; Command*offCommands[7];public: RemoteControl() { /* 代码省略*/ } voidsetCommand(int slot, Command* onCommand, Command* offCommand) { (4) =onCommand; (5) =offCommand; } voidonButtonWasPushed(int slot) { (6) ; } voidoffButtonWasPushed(int slot) { (7) ; }};int main() { RemoteControl* remoteControl=new RemoteControl(); Light*livingRoomLight=new Light("Living Room"); Light*kitchenLight=new Light("kitchen"); LightOnCommand*livingRoomLightOn=newLightOnCommand(livingRoomLight); LightOffCommand* livingRoomLightOff=newLightOffCommand(livingRoomLight); LightOnCommand*kitchenLightOn=new LightOnCommand(kitchenLight); LightOffCommand* kitchenLightOff=new LightOffCommand(kitchenLight); remoteControl->setCommand(0, livingRoomLightOn, livingRoomLightOff); remoteControl->setCommand(1,kitchenLightOn, kitchenLightOff); remoteControl->onButtonWasPushed(0); remoteControl->offButtonWasPushed(0); remoteControl->onButtonWasPushed(1); remoteControl->offButtonWasPushed(1); /* 其余代码省略 */ return 0;}


    答案:
    解析:
    (1)virtual void execute()=0
    (2)light->on()
    (3)light->off()
    (4)onCommands[slot]
    (5)offCommands[slot]
    (6)onCommands[slot]->execute()
    (7)offCommands[slot]->execute()

  • 第3题:

    There is a ()(灯塔).

    • A、lighthouse
    • B、light buoy
    • C、light castle
    • D、lightship

    正确答案:A

  • 第4题:

    在下列灯光类型中,哪种灯光类型更容易模拟点光源?()

    • A、目标平行光(Target Directional Light)
    • B、目标聚光灯(Target Spotlight)
    • C、泛光灯(Omni Light)

    正确答案:C

  • 第5题:

    灯塔()

    • A、light beacon
    • B、light castle
    • C、lamp house
    • D、lighthouse

    正确答案:D

  • 第6题:

    单选题
    The color of the exhaust from a diesel engine should be ()
    A

    clear

    B

    hazy light brown

    C

    hazy light blue

    D

    hazy light grey


    正确答案: D
    解析: 暂无解析

  • 第7题:

    单选题
    A buoy marking a wreck will show a(n)().
    A

    white light FL (2) and a topmark of 2 black spheres

    B

    occulting green light and may be lettered

    C

    yellow light and will be numbered

    D

    continuous quick white light and may be numbered


    正确答案: D
    解析: 暂无解析

  • 第8题:

    单选题
    An anchored vessel on pilotage duty must show which light(s) at night? ()
    A

    A sternlight only

    B

    Anchor lights only

    C

    A white light over a red light only

    D

    A white light over a red light and anchor lights


    正确答案: C
    解析: 暂无解析

  • 第9题:

    单选题
    A hollow-cathode lamp is()
    A

    A broad-band light source

    B

    A narrow-band light source

    C

    A light detector

    D

    Not a light source


    正确答案: C
    解析: 暂无解析

  • 第10题:

    单选题
    A list signal of one white light indicates that the vessel is ().
    A

    on an even keel

    B

    listing about 1° to the side the light is displayed on

    C

    listing over 5° With the light displayed on the high side

    D

    listing,and the chutes should be directed to the side where the light is displayed


    正确答案: B
    解析: 暂无解析

  • 第11题:

    单选题
    An alternating light().
    A

    shows a light with varying lengths of the lighted period

    B

    shows a light that changes color

    C

    marks an alternate lesser-used channel

    D

    is used as a replacement for another light


    正确答案: C
    解析: 暂无解析

  • 第12题:

    单选题
    A towing light is().
    A

    shown below the sternlight

    B

    white in color

    C

    displayed at the masthead

    D

    a yellow light having the same characteristics as the stern light


    正确答案: C
    解析: 暂无解析

  • 第13题:

    A buoy marking a wreck will show a(an) ______.

    A.white light FL (2) and a topmark of 2 black spheres

    B.occulting green light and may be lettered

    C.yellow light and will be numbered

    D.continuous quick white light and may be numbered


    正确答案:A
    FL(2)白光灯和两黑球体顶标的浮标表示沉船。

  • 第14题:

    以下灯光属性中哪个属性可以影响阴影颜色?()

    • A、Light Fog
    • B、Shadow Color
    • C、Light Glow
    • D、Light Glow

    正确答案:B

  • 第15题:

    以下属于Maya提供的灯光类型的是()。

    • A、Ambient Light(环境光源)
    • B、Volume Light(体积光源)
    • C、Spot Light(聚光灯光源
    • D、以上全部

    正确答案:D

  • 第16题:

    产生彩色投影必须调整下面哪个参数()

    • A、light的light transmission设为100%
    • B、light的light transmission设为0%
    • C、投影层的阴影层的light transmission设为80%
    • D、接受阴影层的light transmission设为100%

    正确答案:C

  • 第17题:

    单选题
    以下属于Maya提供的灯光类型的是()。
    A

    Ambient Light(环境光源)

    B

    Volume Light(体积光源)

    C

    Spot Light(聚光灯光源

    D

    以上全部


    正确答案: A
    解析: 暂无解析

  • 第18题:

    单选题
    ()are located on the road panel of main switchboard.
    A

    Megohm meter, insulation light and synchroscope

    B

    Synchroscope, synchro light and megohm meter

    C

    Shore power switch, insulation light and synchroscope

    D

    Megohm meter, insulation light and shore power switch


    正确答案: A
    解析: 暂无解析

  • 第19题:

    单选题
    以下不属于3dsmax标准材质中贴图通道的是()。
    A

    bump

    B

    reflection

    C

    diffuse

    D

    extra light


    正确答案: C
    解析: 暂无解析

  • 第20题:

    单选题
    A vessel trawling will display a().
    A

    red light over a white light

    B

    green light over a white light

    C

    yellow light over a red light

    D

    white light over a green light


    正确答案: C
    解析: 暂无解析

  • 第21题:

    单选题
    打开锚灯! ()
    A

    Switch on the deck light!

    B

    Switch on the anchor light!

    C

    Switch on the cargo light!

    D

    Switch on the hold light!


    正确答案: B
    解析: 暂无解析

  • 第22题:

    单选题
    Which statement concerning Montauk Point Light is TRUE().
    A

    The light comes on at sunset

    B

    There is an emergency light if the main light is extinguished

    C

    The height of the light is 24 feet

    D

    The tower is painted with black and white stripes


    正确答案: A
    解析: 暂无解析

  • 第23题:

    单选题
    下列属于Light标准的是()
    A

    胸腔积液蛋白/血清蛋白>0.6

    B

    胸腔积液LDH/血清LDH>0.6

    C

    单侧胸腔积液

    D

    胸腔积液为渗出液

    E

    黎式试验(+)


    正确答案: E
    解析: 暂无解析