我同学的父亲是老清华的,都70多岁了,当年请教他格林积分问题感到比课堂老师讲得还清楚。功力真是扎实,五体投地。北大文科的容易让人感到浮躁,北大不如清华的学生是很显然的。
我同学的父亲是老清华的,都70多岁了,当年请教他格林积分问题感到比课堂老师讲得还清楚。功力真是扎实,五体投地。北大文科的容易让人感到浮躁,北大不如清华的学生是很显然的。
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