施工中不应采用强度等级小于M5水泥砂浆替代同强度等级水泥混合砂浆，如需替代，应将水泥砂浆提高一个强度等级。

施工中可采用强度等级小于M5水泥砂浆替代同强度等级水泥混合砂浆。

施工中不应采用强度等级小于M5水混砂浆替代同强度等级泥混合砂浆，如需替代，应将水泥砂浆（）。

水泥砂浆地面施工应注意：水泥砂浆地面面层的不应小于（）

对强度等级小于M5的水泥混合砂浆,砂浆用砂的含泥量不应超过( )。

水泥砂浆中选择水泥强度等级要小于等于（）；水泥混合砂浆中选择水泥强度等级小于等于（）。

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。

在抗震设计和施工中应特别重视抗震结构材料的选用，烧结普通黏土砖和烧结多孔黏土砖的强度等级不应低于（）。其砌筑砂浆强度等级不应低于M5。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。