紫禁城的正门，在明代常被皇帝用来责罚大臣的是紫禁城的哪个门？

紫禁城的核心建筑是（），它也是紫禁城规模最大的建筑。

北京紫禁城的护城河（）米宽。

北京紫禁城在公元（）年建造。

园林是一个既有动态景观又有静态景观的空间,动态景观是满足人们“游”的需要,静态景观是满足人们“憩”时观赏,所以园林功能就是要从 提供“游憩”方面来考虑。( )

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.

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。