寒冷地区保温墙体为什么要设隔蒸汽层？隔蒸汽层常采用哪些材料？

保温屋顶为了防止保温材料受潮，应采取设置隔汽层的措施。

多孔无机保温材料吸水后，则该材料的()。

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.

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。

由于工程建设的需要，施工企业甲需经过乙公司内部的道路运送建筑材料，甲乙之间订立合同，约定甲向乙支付一定的费用，便可通过乙的道路运送材料，在此合同中，甲拥有的权利是(  )。

墙面采用保温材料的建筑装饰装修工程，所用保温材料的（ ）应符合设计要求。