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【单选题】
从发生冲撞到气囊形成，进而到安全带拉紧，全过程所需时间为（ ）A.
20 ～ 25ms
B.
30 ～ 35ms
C.
40 ～ 45ms
D.
.50 ～ 55ms
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【简答题】什么叫电磁感应?
【单选题】根据短文回答 46～50 题。 How to Do Well in Exams Do not underestimate (低估) the power of revision in the days and hours before an examination. The closer you are to the exam, the more chance you have of storing...
A.
Do not arrive too early, though, as other people's anxiety can be contagious (传染性), and you may suffer from undue panic.
B.
Try not to be tempted to look at those around you, or at the clock.
C.
When you get home, read the examination paper through and look up all the words you didn't understand.
D.
Sleep, exercise and relaxation are all just as important.
E.
Map out a quick plan of points you wish to make and how much time you should spend on each question.
F.
Go and have a well-earned rest- then prepare for your next exam. 第 46 题 请选择（1）处的最佳答案。
【多选题】以下关于金属与石材幕墙面板安装要求的表述中，正确的是( )。
A.
安装到每一楼层标高时要调整垂直偏差
B.
铝合金挂件的厚度不宜小于3.0mm
C.
石板的转角宜采用不锈钢支撑件或铝合金型材组装
D.
石板与不锈钢或铝合金挂件间应用环氧树脂型石材专用聚酯类胶粘剂
E.
金属、石材幕墙上的滴水线、流水坡向应正确、顺直
【简答题】何谓电磁感应?
【简答题】解释电磁感应定律
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