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【简答题】
已知某6极对数三相交流同步发电机的频率为60Hz,则它的额定转速为: r/min。
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举一反三
【简答题】The UN thinks people in the richest countries use more of ______ than people in developing countries.
【判断题】信标是安装在轨道上的无源或有源器件,它可以接收来自车载信标天线的频率信号,该信号为无源信标工作提供所需的供电。信标可为列车提供定位、精确停车、提供地面信号机状态等功能
A.
正确
B.
错误
【单选题】Which of the following is the effective use of visual aids?
A.
Displaying the visual aids throughout the entire speech.
B.
Keeping the PPT still visible to the audience when the speaker does not discuss them.
C.
Keeping your eyes fixed on the visual aids instead of your audience.
D.
Adding a blank slide at the end of your presentation.
【简答题】On set.visual-effects supervisor Chris Watts managed to use a robotic wolf for the scene.
【单选题】Why are some people fearful of AI, according to the speaker?
A.
Because AI will change human behavior.
B.
Because AI will create smarter and rebellious robots.
C.
Because AI will make humans lose jobs.
D.
Because AI will be managed by bad people.
【多选题】People use visual aids because they ____________.
A.
improve audience understanding and memory.
B.
increase eye contact with your audience
C.
can serve as notes
D.
help to create your image as a competent speaker
【单选题】下列描述哪项 不正确 ( )
A.
脑神经共有12对
B.
枕叶损伤主要出现视觉障碍
C.
脑分为大脑、间脑、脑干、小脑、脊髓
D.
脑干由中脑、脑桥和延髓组成
E.
神经系统从解剖学上可分为周围神经系统和中枢神经系统两大部分
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【判断题】信标是安装在轨道上的无源或有源器件,它可以接收来自车载信标天线的频率信号,该信号为无源信标工作提供所需的供电。信标可为列车提供定位、精确停车、提供地面信号机状态等功能
A.
正确
B.
错误
参考解析：
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