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【简答题】
能够用负荷试验方法检测是否缺乏维生素的是___________ A. 水溶性维生素
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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____________。
【简答题】The ideal college would be a kind of educational retreat in which you could try to find yourself; find out what you like and want; what you are and are not good at.
【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
【单选题】S1: What are the main kinds of pumps on board ship? S2: Besides the centrifugal pump, there are reciprocating pump, vane pump, gear pump and screw pump . Q:What kinds of pumps are there not mentioned ...
A.
Reciprocating
B.
Vane pump
C.
Gear pump
D.
Injection pump
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