B737-700/800冲压空气系统中（） A.进气口和排气口都由一个作动

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问题单项选择题

B737-700/800冲压空气系统中（）

A.进气口和排气口都由一个作动器控制运动

B.冲压管道中的风扇只在地面运转

C.来自水分离器的水喷到管道中以增加散热器的冷却效果

D.以上都正确

答案

参考答案：C

填空题

单词拼写。

1. I invited him to dinner but he didn't ______ (回复) yesterday.

2. Have you heard from your brother ______ (近来)?

3. A few ______ (过路人) saw the accident.

4. You want me to buy you a car. Do you think I'm a ______ (百万富翁)?

5. I found your menu so ______ (有限) that I stopped worrying.

6. You can't go out alone without your parents' ______. (允许)

7. Children are ______ (好奇) about anything, so teachers and parents should satisfy them.

8. After 3 years' hard work, he was out of ______ (债务).

9. Never judge someone by his ______ (外貌). The quality is more important.

10. The last ______ (戏剧一场) of the play was very moving.

填空题

CDMA2000 1x系统反向功率控制分为（）和（）两种。