知识问答
最佳答案：Of course,with cars and bicycles that it caused some traffic problems
最佳答案：1 problem has aroused more and more attention2 exists both strenghs and weakness
最佳答案：When we look at the environmental problem from a worldly perspective, the first
最佳答案：" Being the major problems which have been caused by climate change,these proble
最佳答案：1,Being lacking of drinking water gives rise to health problems, and influences
最佳答案：1.His suggestion to the problem caused by the further discussion.2. His bad eyes
最佳答案：the brith of doly resulted in a big wave in science,politics and even religion f
最佳答案：With the social and economic development,urban transport problems are becoming i
最佳答案：In concrete construction,inevitable meeting structural cracks,the cause of struc
最佳答案：In the room and the chemical widespread use cause which as a result ofmodern arc
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