题目内容

使用响墩时,应牢靠固定在钢轨上。

A. 正确
B. 错误

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祥述中心回转接头损坏采取的应急处理方案。

The remarks are not similar()those on the Shipping Orders.

A. at
B. to
C. by
D. with

餐桌上的“红、黄、绿、白、黑”指的是什么?

You are on a multiple-product chemical tanker and will carry cargoes of allyl alcohol,benzene,and propanolamine. Which of the following is true? ()

All of these cargoes are mutually compatible
Benzene may not be carried in a tank adjacent to either of the other two cargoes
C. Allyl alcohol is incompatible with propanolamine but both are compatible with benzene
D. Propanolamine is compatible with allyl alcohol but must be segregated from benzene

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