题目内容
Parents often come to teachers’ office complaining about the marks or assignments that are given to their children.
查看答案
搜索结果不匹配？点我反馈
更多问题
The author’s parents accompanied her and arranged everything well for her when she first entered university.
Because she was well prepared what would happen over the course of the four years in the university, the author dealt with everything calmly and confidently when she first entered university.
Too many baby-boomers are overly concerned with success. They just don’t want to let go.
水塔水位控制。控制要求：当水塔水位低于水位时，启动注水泵，向水塔注水，到达高水位时，注水泵停止。当注水泵向水塔注水时，如果水池的水位低于水位时，进水阀打开，注水泵停止；当水池水位到达高水位时，进水阀关闭，注水泵重新启动，向水塔注水。
微信支付 
支付宝支付