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On a chart, the characteristic of the light on a lighthouse is shown as flashing white with a red sector. The red sector ______.A.indicates the limits of the navigable channelB.indicates a danger areaC.is used to identify the characteristics of the lightD

题目

On a chart, the characteristic of the light on a lighthouse is shown as flashing white with a red sector. The red sector ______.

A.indicates the limits of the navigable channel

B.indicates a danger area

C.is used to identify the characteristics of the light

D.serves no significant purpose

相似考题

1.53____A.rollinB.floatingC.drawingD.flashing

2.John remarked after the meeting that the speaker was a woman of _________wit.A.emotionalB. accurateC. excellentD. exceptional

3.“The Fighter on the Special Front”, a new－produced feature film, will be ________ in the college auditorium at seven tonight.A.showedB.showingC.showD.shown

4.Parents transmit some of their()to their children.A. characteristicsB. characterC. characteristic

参考答案和解析
正确答案：B
在海图上，灯塔的灯光特性被显示为白和红的扇区。红扇区表示危险区域。
更多“On a chart, the characteristic of the light on a lighthouse is shown as flashing white wit ”相关问题

  • 第1题：

    Which of the following is the correct pin out for T568B?()

    A. Orange/white, orange, green/white, blue, blue/white, green, brown/white, brown

    B. Blue, blue/white, orange/white, orange, brown/white, brown, green/white, green

    C. Green/white, green, orange/white, blue, blue/white, orange, brown/white, brown

    D. Orange/white, orange, brown/white, brown, green/white, green, blue, blue/white


    参考答案：A

  • 第2题：

    When the relative motion display is selected all tracked objects will display ______ vectors．

    A.motion

    B.stationary

    C.dynamical

    D.flashing


    正确答案：A

  • 第3题：

    Attitudes to mental illness have shifted in recent years.

    A:displayed
    B:shown.
    C:changed
    D:demonstrated

    答案：C
    解析：

  • 第4题：

    line chart窗口3的信息来自于哪个地方()

    A.chart 1的 additional info

    B.chart 1的 event

    C.chart 1的 change ms

    D.chart 1的Information Elements


    参考答案：A

  • 第5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6题：

    【口语题】white–wit


    A

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