问题
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The operator of electrical motors should keep a constant check on the loads they carry bec
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A.They are shopping.B.They are jogging.C.They are seeing a movie.D.They are drinking c
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听力原文:(A) They are raising the pipes.(B) They are lying down on the ground.(C) They are
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A.They are friendly neighbors.B.They are company colleagues.C.They are husband and wif
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Which of the following is an opinion of the authors?A.The kids are hanging out.B.They are
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Various means have been taken to check students’ learning. They are().A、quizzesB、duelC、t