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一个多边形从一个顶点出发共引3条对角线,那么这个多边形对角线的总数为( ) A.5 B.37 C.8 D.9
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This coat doesn't fit him well, as he has ________ a huge body and the coat is________ small.
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As the income is increasing,the________of family life has been changing over recent years. [ ]
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甲乙两地相距60千米,假设骑摩托车的速度为40千米时,骑自行车的速度为20千米时.王叔叔骑摩托车由甲地去乙地
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