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【简答题】
电路图如图所示,用叠加定理求电流I。
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举一反三
【简答题】My hobby is reading books.
【单选题】What is a "hobby"?
A.
A hobby is an activity that you often do .
B.
A hobby is an activity that you enjoy doing in your spare time.
C.
A hobby is an activity that you do every day .
D.
A hobby is an activity that you do sometimes .
【单选题】What is your hobby?
A.
My hobby is listening to music.
B.
my hobby like listening to music.
C.
i like listen to music.
D.
i like listening music.
【简答题】在铰链四杆机构中,与机架相连的杆称为 ,其中作整周转动的杆称为 ,作往复摆动的杆称为 ,而不与机架相连的杆称为 。
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