----Will the box be _____________? ----

The teacher as well as 6 girls and 8 boys from her class ________visiting a museum when the  

earthquake struck the city. [      ]

A. was   

B. were     

C. had been

D. is

— Did he tell you _____ he was going to do this summer vacation?

— Yes. He wants to play the violin every day. [ ]

A. who

B. what

C. where

按照《金融机构大额可疑交易报告管理办法》，单笔人民币交易（）万元以上的现金收支业务，应作为大额交易报告。

A.20万

B.50万

C.100万

D.500万

对心脏病妊娠的处理正确的是（）

A.心力衰竭控制后终止妊娠

B.及时发现早期心力衰竭

C.妊娠28周后行剖宫术

D.心功能Ⅲ级者不宜妊娠

E.妊娠28周前引产

孔内有钻具时，除按规定程序卸钻杆外，绝不允许回转器（）

A.反转

B.正转