（）, 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 （）.

（）are liable to be stoten, pilfered or may damaged due to improper handing or stowage.

棉蚜在我国（除华南地区外）大多数越冬虫态是（）。

栗实象甲越冬虫态为（）

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

越冬期间的鲤鱼集群，这是水生生物对极限温度的（）

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。