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【单选题】
已知向量 , ,且 ,则 等于A.
8
B.
-8
C.
2
D.
-2
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【单选题】Fool _____ Jane is, she could not have done such a thing.
A.
who
B.
as
C.
that
D.
like
【简答题】精确制导武器被誉为“( )”。
【单选题】He ran and ran, but he couldn't run _____ to catch the bus. [ ]
A.
fast enough
B.
enough fast
C.
quick enough
D.
enough quickly
【单选题】He criticized everything and everybody, and even______ his few friends.
A.
ran over
B.
ran down
C.
ran against
D.
ran into
【简答题】承 19 题,若水流量不变,改用 Φ68×3mm 钢管,物性数据不变,则 α’’=________ W /(m 2 · °C ).
【单选题】Fool Jane is ______ she could not have done such a thing.
A.
who
B.
as
C.
what
D.
like
【单选题】His money ________, so he had to walked home.
A.
ran out of
B.
ran away
C.
ran out
D.
ran off
【简答题】知觉组织的规律是怎样?
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