A.He is very forgetful.B.He likes to play tricks.C.His tests are difficult.D.It is eas
A. He is very forgetful.
B. He likes to play tricks.
C. His tests are difficult.
D. It is easy to pass his course.
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督察警察是对公安机关的人民警察执行法律、法规,遵纪守法的情况进行监督的人民警察。()
A. 正确
B. 错误
We went to a cinema last week.
A. Right.
B. Wrong.
C. Doesn't say.
三羧酸循环酶系的每个酶都是线粒体基质的可溶性酶。()
A. 正确
B. 错误
______ has cleaner air.
A. Nowhere
B. The city
C. The countryside