新修订《工伤保险条例》规定哪些人有权利享受工伤保险待遇（）
A. 正式职工
B. 各类企业全部职工和有雇工的个体工商户的全部雇工
C. 各类企业、事业单位、社会团体、民办非企事业单位、基金会、律师事务所、会计事务所等组织的职工和个体工商户的雇工
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焊接电流、电弧电压以及焊接速度增加时都能使焊接线能量增加。（）
A. 正确
B. 错误
平面闸门出厂前应进行整体组装，组装应在自由状态下进行，其组合处的错位应不大于（）mm。
A. 1.0
B. 2.0
C. 3.0
D. 5.0
Owner shall have a lien on the cargo for freight，dead-freight，demurrage and damages for detention．It means that（）.
A. Owner will not deliver the cargo if freight not paid
B. Owner will keep the dead-freight until the cargo has been delivered
C. Owner will keep the demurrage as soon as the cargo be delivered
D. Owner shall have no right of detention for the damaged cargo to be delivered
The interval of the average elapsed time from the meridian transit of the moon until the next high tide is called the（）.
A. harmonic constant
B. establishment of the port
C. half-tide level
D. tide cycle
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