王老师:19139051760(拨打)复制微信 题目 更新时间:2023/4/3 The concentration of populations in cities has given ______ to many problems of housing, education, and medical services. A. rise B.reasonC. result D.response 答案 登录 注册 参考答案:A 出自:联大 >> 信阳师范学院-英语-高级英语 信阳师范学院继续教育学院