On the other hand，the quality of the environment is ______ by to
分类: 旅游英语选读(00837)发布时间: 2024-11-05 23:27浏览量: 0
On the other hand，the quality of the environment is ______ by tourist development itself which is promoted because of its economic importance． A、threatened B、improved C、helped D、dropped 【正确答案】：A