为便二压装，轮座外侧与轴中央部必须缓和过渡，不允许有任何凸肩，以免引起应力集中，损害车轴。
参考答案：对
易发生氧化降解的是
A．四环素 B．青霉素G钾盐 C．维生素C D．硝普钠 E．胰岛素
用括号内所给词的适当形式填空。
1. Do you want (go) to a movie?
2. Maria likes thrillers but she (not like) comedies.
3. I often go (see) it.
4. Does your parents (want) to see action movies?
