不宜单独用于治疗嗜铬细胞瘤的是A．哌唑嗪 B．阿替洛尔 C．酚妥拉明 D．硝普钠 E

We are learning English, but how can we learn English well? A student can know a lot about English, but maybe （可能）he can not speak English.

If you want to know how to swim, you must get into the river. And if you want to be a football player, you must play football.

So, you see, you can learn English only by using it. You listen to your teacher in class. You must read your lessons every day. You must speak English to your classmates and you must write in English，too. Then one day, you may find your English very good.

( ) 12. You know a lot about English but maybe you ______.

A. can’t speak it                    B. can write it     

C. can’t study it                   D. can use it

( ) 13. You must get into the river ______.

A. to learn how to swim            B. to play with water     

C. to go boating                  D. to catch a fish

( ) 14. Do you want to be a football player? Please ______.

A. put your football away        B. buy a good football    

C. play football                 D. watch others play football

( ) 15. How can we learn English well?

A.We must have a good English book.

B.We must have a good English teacher.

C.We must see more English films.

D. We must use it often.

简述婚前性行为的类型。

表虚自汗，阴虚盗汗者忌用，可用于水肿兼表证（）

A.麻黄

B.桂枝

C.紫苏

D.防风

E.羌活

根据《医院隔离技术规范》的要求，接触患者的血液、体液、分泌物、排泄物、呕吐物及污染物品时应戴（）

A、可以不戴手套

B、无菌手套

C、清洁手套

断路器的操作机构一般包括合闸机构和分闸机构。（）