题目内容
(请给出正确答案)
[主观题]
--A-t-il écrit à ses parents ? --Non, il leur n'a pas écrit.
提问人:网友cyberleo
发布时间:2022-01-06
A、looked at
B、looked after
C、looked back
D、looked down
There are 3 eccentric masses on a rotor.Surpose that all of these masses are located in same plane, andlocation of each mass is shown in figure.Try to find balancing mass (location and magnitude) if radius of balancing mass.
— Why didn't Ted _____ us in singing? — _____ he was upset today. He was caught smoking in the dormitory. |
[ ] |
A. join in ; Because of B. join; Because C. attend; Because D. take part in; For |
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