坡屋顶的承重结构一般有（）。

坡屋顶的承重结构有（）、（）和（）三种。

屋架是坡屋顶的主要承重结构，它是由()组合而成的整体。

坡屋顶的承重结构有哪几种？分别在什么情况下采用？

屋架是坡屋顶的主要承重结构，它是由上弦杆、下弦杆、（）等诸多杆件组成的整体。

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.

砖混结构是承重墙为（），楼板和屋顶为（）的建筑。

屋顶是建筑物顶部的围护构件，但不是承重结构。

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。