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【简答题】
动平衡的构件一定是静平衡的，反之亦然，对吗?为什么?在图所示的两根曲轴中，设各曲轴的偏心积均相等，且各曲轴均在同一轴平面上。试说明两者各处于何种平衡状态?
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举一反三
【简答题】They quarreled themselves red in the face.
【单选题】Yesterday they quarreled over the phone, and Jack ______ Jane in a burst of anger.
A.
hung on
B.
hung up
C.
hung up on
D.
hung about
【单选题】药典溶液后标记的“1→10”符号系指
A.
固体溶质1.0g加溶剂10ml的溶液
B.
液体溶质1.0ml加溶剂10ml的溶液
C.
固体溶质1.0g加溶剂使成10ml的溶液
D.
固体溶质1.0g加水（未指明何种溶剂时）10ml的溶液
【单选题】They loved each other. They quarreled (争吵) from time to time.
A.
They loved each other, even though they quarreled (争吵) from time to time.
B.
Even if they loved each other, they quarreled (争吵) from time to time.
【单选题】They quarreled themselves red in the face. The italicized part is______.
A.
the subject
B.
the object
C.
the adverbial
D.
the predicate verb
【单选题】Having been married for over 10 years, the couple ____ finally because they quarreled a lot.
A.
broke up
B.
broke down
C.
broke out
D.
broke in
【简答题】我国目前绝大多数货车都采用( )制动方式。A. 1111MicrosoftInternetExplorer402DocumentNotSpecified7.8 磅Normal0单侧闸瓦式B. 1111MicrosoftInternetExplorer402DocumentNotSpecified7.8 磅Normal0双侧闸瓦式C. 1111MicrosoftInternetExplorer4...
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