A-A+
The traffic jams are difficult problems in cit
问题详情
The traffic jams are difficult problems in cities and along the approaches to cities at morning and evening rush hours.
A．Y
B．N
C．NG请帮忙给出正确答案和分析，谢谢！
参考答案
正确答案：A
解析：由题干关键词trafficjams定位到第二个小标题下第一句。Trafficjamsincitiesandalongtheapproachestocities．especiallyatmorningandeveningrushhoursandatthestartandendofweekends，aredifficultproblems。题干是对原文的省略。rushhours指“交通高峰时间”。
