50年代中期，在历史题材方面是最先取得重大成就的是老舍的话剧（），而后有田汉的话剧（）、姚雪垠的长篇小说（）。

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（）.

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。

《王贵与李香香》运用了（）形式，在民族化方面取得重大成就。

宋代在行书方面取得重大成就的书法家有（）

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。