据说亚历山大城有一位精通数学和物理的学者,名叫海伦.一天,一位罗马将军专程去拜访他,向他请教一个百思不得其解的问题.军官每天从军营A出发先到河边C处饮马,然后再去河岸同测的B处开会,(如图1)应该怎样走才能使路线最短?这个问题被称为“将军饮马”问题而广为流传.体现在新课 It is said that Alexander City had a scholar who was fluent in mathematics and physics, named Helen. One day, a Roman general made a special trip to visit him and asked him a question that was so puzzling. The officer departed every day from barracks A to the riverside first. Drink horses, and then go to the river bank with the test at the B Department to meet, (Figure 1) should be how to get the shortest route? This problem is known as the “General drinking horses” and widely circulated. In the new lesson