在抹灰工程中胶凝材料主要有水泥、石膏、（）等。

硅酸盐水泥水化产物中，具有固定组成的六方板状结构的是（）。

道路硅酸盐水泥与普通硅酸盐水泥相比，增加了（）的指标技术要求。

硅酸盐水泥的水化产物中胶体为___和___.

硅酸盐水泥的水化产物中有两种凝胶,即水化铁酸钙和 ___ 。

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。