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【单选题】
兆欧表的接线端标有( )。 A.接地E.线路L.屏蔽G B.接地 N.导通端L.绝缘端G C.接地 E.导通端L.绝缘端G D.接地 N.通电端G.绝缘端LA.
B.
C.
D.
D
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举一反三
【单选题】UMS are mainly unattended overnight and during this time the ________ should have control of the main engine.
A.
chief engineer
B.
engineer on cabin watch
C.
bridge officer on watch
D.
【简答题】一个理想光学系统的三种放大率(垂轴放大率β、轴向放大率α与角放大率γ)三者之间的关系为 ( ) 。
【单选题】UMS are mainly unattended overnight and during this time ____ should have control of the main engine
A.
the chief engineer
B.
the engineer on cabin watch
C.
the bridge officer on watch
D.
the
【单选题】UMS are mainly unattended overnight and during this time main engine should have control of the ________
A.
the chief engineer
B.
the engineer on cabin watch
C.
the bridge officer on watch
D.
the
【简答题】按磁路的结构形式不同，点火线圈可分为开磁路点火线圈和闭磁路点火线圈两种。目前在独立电子点火系统中应用最广泛的是（）。
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