问题
填空题
城市轨道交通是指列车或车辆以（）为动力、在钢轨上或沿导向轨运行的城市公共交通方式。
答案
参考答案：电力
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城市轨道交通是指列车或车辆以（）为动力、在钢轨上或沿导向轨运行的城市公共交通方式。
参考答案：电力
He is a 16-year-old boy. __1__name is Alan Brown. Alan is __2__ American high school student. He lives at __3__ Road. Art and music __4__ his favourite subjects. He loves studying and also loves sports. He usually goes swimming three or four times every week. And he walks after supper every _5__. Cool water and clean air always make him happy. American students are quite different from __6__. On Saturdays, he often has parties __7__ his friends and they always enjoy themselves. On Sundays, he usually __8__ at home and watches TV.
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