重为2ON的木球静止在水面上,在图中画出它所受力的示意图. 发布时间:2017-07-08 15:09 │ 来源:www.tikuol.com 题型:问答题 问题: 重为2ON的木球静止在水面上,在图中画出它所受力的示意图.
题型:问答题 All the books donated by the students from urban schools are said _____ to the students in rural areas the other day. [ ]A. to be sent B. being sent C. having been sent D. to have been sent 查看答案