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一.阅读下面的文字,按要求回答1-4题。(20分。1-4题每小题5分)用数学解决“幽灵堵车”每个月,你有多少时间浪费在堵车中?答案是:难以计算。最让人沮丧的是那些表面上看似没有任何起因
I. Read the following text, answering questions 1-4 questions. (20 points .1-4 questions 5 points each) Solved with mathematics “Ghost traffic jam ” Every month, how much time you have wasted in the traffic jam? The answer is: difficult to calculate. The most frustrating thing is that seemingly without any cause