单项选择题

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.与电路的外加激励U有关
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单项选择题
A.-1B.+1C.-2D.+2
A.-1
B.+1
C.-2
D.+2
单项选择题
Which space(s)is(are)deducted from gross tonnage to derive net tonnage ________.A.Galley fitted with range or ovenB.Open structuresC.Passenger spacesD.Boatswain's stores
A.A.Galley
B.Open
C.Passenger
D.Boatswain's
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