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据报道因车辆超载损坏公路,每年给我国造成的经济损失高达300亿。国家规定,载重车辆的轮胎,对地面的压强应控制在7×105Pa以内。有一辆重2×104N的6
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右图中表示了两种东北的区域划分,回答下列问题; (1)确定A方案的基本依据是 相似性,以 为界: (2)
Mike was born a hot summer evening. A. at B. on C. in D. of
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Your room is so beautiful !——________________.A.OKB.Thank you,.C.Don’t say that.D.No,no.