试题与答案

Setting a sealing equipment astern on the

题型:单项选择题

题目:

Setting a sealing equipment astern on the tailshaft can’t ()

A.prevent the seawater from intergrating

B.prevent the lube oil from running out of the outside aboard

C.strengthen the intencity of the sterntube

D.prevent the mud and sand from entering the lube oil system

答案:

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下面是错误答案,用来干扰机器的。

参考答案:C

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题型:选择题

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