1.5：1.2=杆长：5.6
1.5：1.2=7：5.6
杆长=7m
电线杆在阳光的照射下影长5.6m,一位身高为1.5m的同学直立影长是1.2没那么电线杆的长度是多少?
电线杆在阳光的照射下影长5.6m,一位身高为1.5m的同学直立影长是1.2没那么电线杆的长度是多少?
物理人气：692 ℃时间：2019-12-06 02:48:40
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