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【单选题】
实现精馏操作的必要条件包括 。A.
塔顶液相回流，塔底上升蒸气回流
B.
塔顶液相回流
C.
塔底上升蒸气
D.
精馏塔操作稳定
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【单选题】The mere fact ______ most people believe nuclear wars would be madness doesn't mean that it will not occur.
A.
what
B.
which
C.
that
D.
why
【单选题】The mere fact ______most people believe nuclear war would be mad does not mean that it will not occur.
A.
that
B.
which
C.
what
D.
whose
【单选题】The mere fact _____ most people believe nuclear war would be madness doesn’t mean that it will not occur.
A.
what
B.
which
C.
that
D.
why
【简答题】The mere fact__________ most people believe nuclear war would be mad does not mean that it will not occur. A． that B. which C. what D. whose
【单选题】The mere fact ______ most people believe nuclear war would be madness does not mean that it will not occur.
A.
what
B.
which
C.
that
D.
why
【单选题】The mere fact ______ America still attracts many people is evidence ______ it is not on the decline.
A.
that; that
B.
that; which
C.
which; which
D.
which; that
【单选题】The mere fact __________ most people believe nuclear war would be madness does not mean that it will not Occur.
A.
what
B.
which
C.
that
D.
why
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