（）, 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（）.

Effects which are dutiable or subject to prohibitions or restrictions should be declared in （）.

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

由若干宽度相等、高度不一的直方条紧密排列在同一基线上构成的图形是（）

（）是以若干宽度相等的平行条形的高低或长短来表示统计数字资料的图形。

画次数直方图时，要求各直方条（）

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

装载成件包装货物时，当装载高度或宽度超出侧墙（板）时，应层层压缝，梯形码放，四周货物排列紧密，两侧超出侧墙板的宽度应一致。