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【判断题】
分子氧对专性厌氧微生物的抑制和致死作用,是因为这些微生物内缺乏超氧化物化酶和过氧化氢酶A.
正确
B.
错误
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【单选题】－Why didn’t Tom give you one of his paintings? －I didn’t want one，but he would have given me one if I______.
A.
did
B.
would
C.
will
D.
had
【单选题】I will talk to the children ______ .
A.
one and then the other
B.
first one then the next
C.
one by one
D.
in singles
【单选题】The cakes are delicious. I’d like to have _______ third one as _______ second one I ate was too small.
A.
the, the
B.
a, the
C.
the, a
D.
a, a
【简答题】I think this one is bigger and (cheap) ______ than that one.
【简答题】- There must be a dozen pens in this house but I can never find one when I need one. - Keep looking. ______ is sure to turn up. A) One B) It C) That D) This
【简答题】电控发动机节气门位置传感器按输出信号可分为开关式和___,式两种形式。
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