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【单选题】
下列句子中的“跟”不属于介词的是( )。A.
我跟她是多年的老朋友了。
B.
是她欠你钱，你跟她要！
C.
你抽空跟她谈谈吧。
D.
我跟她一样胆小。
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反馈参考答案：
举一反三
【简答题】当关键字集合很大时,关键字值不同的元素可能会映象到哈希表的同一地址上,即 k1≠k2 ,但 H(k1)=H(k2),这种现象称为____________。
【单选题】A positive displacement pump is that where the volume of the pump chamber is alternately _____ to draw the liquid in and then _____ to force the liquid out.
A.
increased / decreased
B.
decreased/increased
C.
decreased/decreased
D.
increased/increased
【单选题】On modern ships, centrifugal pump with a self-primer has replaced reciprocating pump as bilge pump because（）
A.
centrifugal pump is cheaper than reciprocating pump
B.
the size of centrifugal pump with same capacity is smaller than that of reciprocating pump
C.
centrifugal pump makes maintenance easier than reciprocating pump does
D.
all of the above
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