（）, 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.

Banks have no liability for any delay or loss caused by postal or telex failure.

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

为了研究出生婴儿的性别比，可以抽选一定数量的医院、保健院，对其出生婴儿进行调查，不必对全国每一个出生婴儿进行调查，这种调查方法属于（ ）。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

卫生保健“九大制度”包括（）、饮食制度、体格锻炼制度、（）、卫生消毒及隔离制度、预防疾病制度、安全制度、卫生保健登记、统计制度及家长联系制度。