马克思主义历史唯物论认为，理解人类社会发展史的“钥匙”是（）。

唐代是诗歌的时代，此时安徽诗坛最突出的特色就是出现了（）诗人群和宣州诗人群。这两个诗人群体及其创作的诗歌非常具有安徽地域文化特色，另外，安徽的巢湖地区还诞生了中唐著名诗人张籍。

Shutdown price（or point，or rule） 停业价格（或停业点、停业原则）

翻译：With Average or With Particular Average（WA or WPA）（）

简述《安徽省“十三五”推进基本公共服务均等化规划》基本公共教育有哪些保障工程？

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。