低频减载装置是按（）来决定分级减载的。A.电压等级； B.用户的重要程度； C.供电

A: _____ are you buying so much food?  

B: Because your uncle is coming for dinner. [ ]

A. Why      

B. How        

C. Where    

D. What

What __________ they do?  They can fly.[ ]

A. are                 

B. do                 

C. can

手法复位嵌顿性包茎失败后，应采取（）。

A.局部湿敷后再施行手法复位

B.包皮环切术

C.抗生素消炎后再做包皮环切术

D.纵行切开背侧包皮，1周后再行包皮环切术

E.切除形成包茎嵌顿的狭窄环

For which of the following reasons is Sweden’s Nobel Academy coming under heavy criticism now().

A.The Academy’s selection of the winners has less to do with true writing ability than with other things.

B.The Academy only selects certain types of writers as the winners.

C.The Academy hasn’t modified any of the standards of selection as time progresses.

D.The Academy has selected too many English language writers as the winners.