建筑石膏最突出的技术性质是凝结硬化快，且在硬化时体积略有膨胀。

建筑石膏与水拌和后，凝结硬化速度（）

建筑石膏的凝结和硬化主要是由于（）相互作用还原成二水石膏。

单选题18．建筑石膏凝结硬化时，最主要的特点是（     ）

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）（）

建筑石膏凝结硬化时,其主要特点有_________。

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.

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。