---- Sorry, I have to (   )now. It’s time for class. ---- OK

---- Sorry, I have to (   )now. It’s time for class. ---- OK, I’ll call back lat

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back to you before four in the afternoon,and I________ 78

back to you before four in the afternoon,and I________ 78

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I’m trying to break the (   )of getting up too late . A. tra

I’m trying to break the (   )of getting up too late . A. tradition B. convenienc

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关于万有引力及其应用,下列表述正确的是(  )。

关于万有引力及其应用,下列表述正确的是(  )。A.人造地球卫星运行时不受地球引力作用 B.两物体间的万有引力跟它们质量的乘积成反比 C.两物体间的万有引力跟它

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72Ideal (理想的)study

72Ideal (理想的)study

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