儿童心搏骤停复苏时，首选的药物是（）。
A.阿托品
B.异丙肾上腺素
C.肾上腺素
D.多巴胺
E.多巴酚丁胺
参考答案：C
完成句子。
1. you should go out playing (而不是) working all day.
2. My life (改变) a lot in the last few years.
3. We shoule be allowed to choose (我们自己的) clothes.
4. You would rather stay at home (而不愿意参加) to a party.
5. (当心) of the dog that does not bark.
拉丝式送丝机构只能适用于短距离输送焊丝。（）
