60. The perimeter fo a rectangular garden is 360 feet. What is the length of the graden? (1) The length of the gardenis twice the width.(2)The difference between the length and width of the garden is 60 feet 答案选D 我选的A 我觉得第二个说长宽之前的不同是60 那么长可以为120 或60啊 为什么答案说长一定是120呢?是不是我题意理解错误?还是说长一定比宽长啊? 拜托各位前辈了,不胜感激!