问题
单项选择题
旅客氧气面罩落下后，氧气何时开始供给（）？
A、面罩一落下就开始供氧
B、当组件中的任何一个面罩向下拉动时
C、当按压供氧电门时
D、当驾驶舱里的”旅客氧气”电门放到”ON”位时
答案
参考答案：B
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旅客氧气面罩落下后，氧气何时开始供给（）？
A、面罩一落下就开始供氧
B、当组件中的任何一个面罩向下拉动时
C、当按压供氧电门时
D、当驾驶舱里的”旅客氧气”电门放到”ON”位时
参考答案：B
| 把Ⅱ栏中的答语与I栏中的问句搭配起来。 |
| I ( ) 1. What does she do? ( ) 2. Where does the rain come from? ( ) 3. Where does your mother work ? ( ) 4. What is your hobby? ( ) 5. Does your aunt like reading newspapers？ | II A. I like diving. B. She is a TV reporter. C. It comes from the clouds. D. No, she doesn't. E. She works in a company. |