水玻璃可配制成防水剂掺入硅酸盐水泥砂浆提高砂浆的（）

建筑物需以玻璃作为建筑材料的，下列部位必须使用安全玻璃：（）。

建筑物需要以玻璃作为建筑材料的哪些部位必须使用安全玻璃？

以玻璃作为建筑材料的（），可不必使用安全玻璃。

抹面砂浆中掺入适量的麻刀或玻璃纤维，目的是（）

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。