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We are traveling a speed of 90 kilometers an hour. [ ] A.atB.in C.ofD.on

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We are traveling a speed of 90 kilometers an hour. [ ] A.atB.in C.ofD.on

We are traveling ________ a speed of 90 kilometers an hour.

[]

A.atB.inC.ofD.on

试题答案

答案:A

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