水泥混凝土道路基层材料主要根据（）选用。

当基层为不吸水材料（如致密的石材）时，影响砂浆强度的因素主要取决于（）。

砌筑砂浆不吸水基层与吸水基层材料时，砂浆的强度分别与哪些因素有关？

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.

When loading or discharging dry mud or cement，crew members should use goggles and（）.

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。

根据填充墙砌体工程的一般规定，采用普通砌筑砂浆砌筑填充墙时，烧结空心砖、吸水率较大的轻骨料混凝土小型空心砌块应提前ld～2d浇（喷）水湿润。蒸压加气混凝土砌块采用蒸压加气混凝土砌块砌筑砂浆或普通砌筑砂浆砌筑时，应在砌筑当天对砌块砌筑面喷水湿润。块体湿润程度宜符合下列规定（）。