The loss of his()of hearing didn't stop him f~om being a useful member of the society.
A. faculty
B. ability
C. capability
D. power
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If your expenses ______your income, you will be in debt.
A. surpass
B. exceed
C. survive
D. pass
()from a distance, the island looked like a cloud.
A. Viewing
B. To view
C. Viewed
D. Being viewed
The policeman entered the dark room,______
A. gun was in hand B. had gun in hand
B. gun be hand
C. D. gun in hand
调节X线管灯丝电流的目的是
A. 控制产生X线的性质
B. 控制产生X线的数量
C. 阻止反向电动势D.这些都对
D. 有一个以上对,但不都对