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【简答题】
Please introduce one type of the main engine.
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举一反三
【单选题】Our history professor is (such) a knowledgeable person that (it seems) that there isn't (nothing) which he (does not) know.
A.
such
B.
it seems
C.
nothing
D.
does not
【单选题】Everything seems all right,______?
A.
doesn't it
B.
wasn't it
C.
don't they
D.
hasn't it
【单选题】—What does this sentence mean ? --- It seems to me that it ________.
A.
doesn’t make sense
B.
doesn’t have sense
C.
doesn’t make meaning
D.
doesn’t be meaningful
【简答题】转速调节时压力和流量的变化都较大，从而可显著扩大（），且并不引起其他附加（），亦不附加其他（），因而它是一种经济简便的方法。
【单选题】Nothing seems to please her, _________?
A.
does it
B.
doesn’t it
C.
is it
D.
isn’t it
【单选题】Everything seems all right, ____________ ?
A.
doesn't it
B.
won't it
C.
hasn't it
D.
don't they
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