东晋对南方大开发后，为后代中国历史的发展提供了一个稳固的（）。

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（）.

新疆历史上第一座清真寺建在。（）

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

我国历史上第一部编年通史著作是（）

中国历史上建都朝代最多、建都时间最长的古代都城之一，有“十三朝古都”之美誉的是（）。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。