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基础知识,章节练习,土木工程师（水利水电）现代技术基础,电气技术基础

A.
B.
C.
D.
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A.0B.0.05C.0.15D.0.2
A.0
B.0.05
C.0.15
D.0.2
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What is a cofferdam ________．A.Tube fitted to an ullage holeB.Area the product is loaded intoC.Void or empty space separating two tanksD.Opening in the deck used for cleaning a tank
A.A.Tube
B.Area
C.Void
D.Opening
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