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钻柱在井下运动的形式可能有哪几种？

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手工核印的对账回单，应（）人签章确认核印.

A. 1
B. 2
C. 3
D. 4

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国网公司输变电设备标准缺陷库中缺陷的分类是（）

A. 一般、严重、紧急
B. 一般、重大、紧急
C. 一类、二类、三类
D. 一般、严重、危急

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Which statement is TRUE concerning the ventilation of engine and fuel tank compartments on uninspected towing vessels using fuel with a flash point of 100°F?（）

A. There shall be at least 3 ventilator ducts open to the atmosphere
B. At least one exhaust duct shall extend from the open atmosphere to the lower portion of the bilge
C. At least one intake duct shall extend from the open atmosphere to the lower portion of the bilge
D. Only vessels using fuel with a flash point above 110°F need ventilate engine and fuel compartment

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课税对象是课税的根据，税源是税收的经济来源或最终出处；因此，两者是不一致的。（）

A. 正确
B. 错误

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