问题 更新时间2023/5/25 0:51:00 【单选题】The expression“the ups and downs " in Para.4 means ________.回答A.present and past situationsB.good and bad experiencesC.chances and challengesD.happy and sad feelings 答案 登录 注册 B.good and bad experiences 出自:广东开放大学 >> 广东开放大学学位外语(本,23春)