升降人员时,罐笼停稳后,必须由()打开安全门和罐门。
A.上罐人员;
B.下罐人员;
C.把钩工
参考答案:C
用所给词的适当形式填空。
1. This dog is very ______________(love) and I like it very much.
2. Who does ___________(good) in English, John or Mike?
3. I hope to spend two hours _______ (play) softball with him.
4. Students can have _________________ (drive) lessons in American schools .
5. At the ____________ (begin) of the trip, most of us felt bored.
6. My mother always cooks ___________ (taste) meals on Sunday.
7. It rained heavily yesterday, so my father (drive) me to school.
8. The girls finished their work all by______________(them).
9. Yesterday we had a good time _______(chat)with each other.
10.I plan ( go ) to Beijing for summer holiday next year .
复方氢氧化铝片的成分是()
A、氢氧化铝、碳酸氢钠、颠茄流浸膏
B、氢氧化铝、三硅酸镁、颠茄流浸膏
C、氢氧化铝、颠茄流浸膏
C、氢氧化铝、三硅酸镁、硫酸阿托品
E、三硅酸镁、颠茄流浸膏