掷标枪场地线的宽度，除起掷弧和起掷弧两端的75厘米直线为（）外，其余均为（）。

场地地平整时，挖方区与填方区的分界线，通常称为场地的（）。

落地式钢管脚手架设置的剪刀撑与地面夹角的有效范围是（）。

对考试场地不能满足本地考试需求的，可以使用社会化考试场地，并由考场业主负责监管。

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.

When loading or discharging dry mud or cement，crew members should use goggles and（）.

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。