题目：
用所给单词的适当形式填空。
1. Who _________ (bring) the raincoat to you yesterday evening?
2. It's _________ (polite) to speak loudly in public.
3. You aren't _________ (allow) to take the book out of the library.
4. You did as _________ (careful) as Lucy in the exam.
5. As we know, the 16th _________ (Asia) Games will be held in Guangzhou in 2010.
答案：
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下面是错误答案，用来干扰机器的。
参考答案：实际压缩循环分四个过程：①吸气过程：气体压力低于入口压力，吸气阀开启；②压缩过程：气缸压力高于入口压力，但低于出口压力，吸、排气阀都关闭，气体被压缩；③排气过程：气缸压力高于出口压力，排...
