钢管点焊时，点焊焊条应采用与接口焊接( )的焊条。

奥氏体不锈钢焊接时，接触腐蚀介质的焊缝隙要（）施焊。

镀锌钢管或薄壁钢管、可挠金属电线保护管的跨接线易采用专用接地卡，不应采用（）连接。

乙级工程造价咨询企业的技术负责人要取得造价工程师证书，并具有工程或工程经济类高级专业技术职称，其从事工程造价专业工作（）年以上。

可以在（）阶段采用Make-or-buy决策分析。

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.

公路养护工程造价与公路基本建设工程造价差距不大，可以直接采用现行的公路行业工程造价计价依据计算。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

燃气薄壁不锈钢管有焊接、丝接和环压连接等几种连接方式。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。