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小学数学思维：求两车间原来各多少人，该怎样算呢@忆梦月华
精讲小学数学思维题：两车间原来人数相等，现在从一车间调15人到二车间，这时二车间人数是一车间的2倍。两车间原来各多少人？@忆梦月华
小学数学思维题185/235
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