对于不上人屋顶，通气帽应高出屋面（）m，并大于积雪厚度。

通气立管高出屋面不得小于（），但必须大于最大积雪厚度。????

排水通气管应高出屋面（）mm，且不低于当地积雪深度的要求。

通气管高出屋面不得小于（）m，且应大于最大积雪厚度，通气管顶端应装设风帽或网罩。

在排水系统中，关于伸顶通气管的设置，下列做法中不正确的是（）。

室内排水管道均应设置伸顶通气管。

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。

对平屋顶可上人屋面，伸顶通气管应伸出屋面（）。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。