直角角焊缝可能用于（ ）。

直角角焊缝的有效厚度he=（）hf.

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.

某侧面直角角焊缝hf=6mm，由计算得到该焊缝所需计算长度40mm，考虑起落弧缺陷，设计时该焊缝实际长度取为（）

某侧面直角角焊缝hf=4mm，由计算得到该焊缝所需计算长度30mm，考虑起落弧缺陷，设计时该焊缝实际长度取为（）

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

以下哪些情况会造成提示“Incorrect number or IP address”？（）

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。