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【判断题】
因为动点的全加速度由切向加速度和法向加速度组成,所以,动点在变速直线运动中的全加速度,总与切向加速度相等.()A.
正确
B.
错误
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举一反三
【简答题】If this kind of fish becomes ________, future generations may never taste it at all. A) minimum B) short C) seldom D) scarce
【单选题】Do you like the book _____by Guo Jingming? [ ]
A.
wrote
B.
was written
C.
written
D.
writes
【简答题】类目属性错放
【单选题】If this kind of fish becomes____,future generations may never taste it at all.
A.
scarce
B.
minimum
C.
short
D.
seldom
【简答题】类目属性错放
【简答题】A．The woman is examining some old houses. B．The woman is going to rent the house. C．The woman is discussing the house condition with her colleagues. D．The woman tells the man to change the wiring.
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