TheexternalcircumferenceofapairofmainbearingshellsisslightlylargerthanthatoftheboreofthehousingwhichreceivesthemThedifferenceistermed().
A. nip
B. nap
C. gap
D. lip
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救生筏应配备当筏充气时能()施放的海锚。
A. 自动布放
B. 人工布放
C. 混合布放
交通银行与客户在约定的期限内将相同外汇币种不同利率形式的资产或债务相互交换,该产品称为()
A. 外汇掉期
B. 利率掉期
C. 利率期货
D. 外汇期货
Ananchoredvesselonpilotagedutymustshowwhichlight(s)atnight?()
Asternlightonly
B. Anchorlightsonly
C. Awhitelightoveraredlightonly
D. Awhitelightoveraredlightandanchorlights
Thefilmofoilbetweentheringsandthelinerisnotonlyessentialforthelubricationbutalsoplaysanimportantpartinachieving().
A. anoilseal
B. removingheat
C. agasseal
D. coolingthepiston