《中国药典》以蒽醌为控制成分之一的中药材是（）。 A.黄芪 B.斑螯 C.石膏 D.

运输里程而制定的运价结构体系，如按运输作业过程可以把运输支出划分为()。

A.平均作业费

B.始发到达作业费

C.中转作业费

D.不可预计费

E.运行作业费

We went to the swimming pool today. I had my first swimming lesson. At first I was very afraid. I hated it when the water went up my nose and into my ears. I kept my eyes closed all 小题1:_____ time.

Slowly, however, I became more confident. The teacher made sure 小题2:____ would always touch the bottom of the pool with my feet and 小题3:____ my head was above water. By the end of the lesson I could float on the water for 小题4:____ least a minute.

I’m glad I’m learning to swim; it can be lots of fun. Soon I hope to be able to dive into the pool 小题5:____ swim underwater.

单位工程指标编制应列入的费用有( )。

A．建筑安装工程费用

B．预涨费

C．联合试运转费

D．工程承包费

Does your brother often wash clothes  _______? [ ]

A. he 

B. himself 

C. herself 

D. him

证券公司、托管机构和推广机构可以根据市场的风险预测水平来规定附于成本收益的方式进行交易。 ( )