Two men, starting at the same point, walk in opposite directions for 4 meters, turn left and walk another 3 meters. What is the distance between them?
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【正确答案】 1、正确答案：10 meters．    
【答案解析】解析：(他们走了两个直角边分别为3和4的直角三角形。两个斜边之和是他们之间的距离。)