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问题 单项选择题

CD132转向灯如何控制？（）

A.由GEM直接控制，无单独闪光继电器

B.无单独闪光继电器，但在GEM内有蜂鸣器提醒转向灯在工作

C.灯泡坏的越多，则闪光频率越快

D.紧急信号有单独闪光器

答案

参考答案：A

单项选择题

D


What are you going to do if you are in a burning house How will you escape Do you know how to save yourself Please read the following passage.
Escaping a fire is a serious matter. Knowing what to do during a fire can save your life. It is important to know the ways you can use and show them to everyone in the family, such as stairways and fire escapes, but not lifts.
From the lower floors of the buildings, escaping through windows is possible, learn the best way of leaving by windows with the least chance of serious injury.
The second floor window is usually not very high from the ground. An average(平均高度的) person, hanging by the finger-tips will have a drop of about six feet to the ground. It is about the height of an average man. Of course, it is safer to jump a short way than to stay in a burning building.
Windows are also useful when you are waiting for help. Be sure to keep the door closed. Or smoke and fire may be drawn into the room. Keep your head low at the window to be sure you get fresh air rather than smoke that may leaked (渗) into the room.
On a second or third floor, the best windows for escape are those that open onto a roof. From the roof a person can drop to the ground more safely. Dropping onto cement(水泥) might end in injury. Bushes(灌木丛) and grass can help to break a fall.

Which of the following escaping way is NOT right ( )

A．You can escape though stairways.

B．You can choose fire escapes.

C．Escape from the windows that open onto a roof.

D．Use a lift to come down at onc
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填空题

位置开关是一种（）以控制运动部件的位置或行程的控制电器。
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