熟料的主要优点是可塑性好。

钢结构具有塑性韧性好的特点，则主要用于（）。

可供高炉炉前脱硅使用的脱硅剂有（）

Every deliberate act of wrongdoing by the master or any of the crew against the ship or cargo，without the authorization or privity of the Shipowner or his agent，is（）.

（）, or drum is used for hauling in or letting out the wires or ropes which will fasten the ship to the shore.

A salvor may be（）the whole or part of the payment due under Salvage Convention to the extent that the salvage operations have become necessary or more difficult because of fault or neglect on his part or if the salvor has been guilty of fraud or other dishonest conduct.

The （） is used for hauling in or letting out the wires or ropes.

Vessels must be（）valid certificate of nationality or certificated of registry or license.

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

板坯连铸机采用多点矫直比采用一点矫直好。

承载应力大、可塑性好、气密性好、便于焊接、与其他管材相比，具有壁厚较薄、节省金属用量等优点的管材是（）。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。