循环水泵倒转时应紧急关闭出口门,无效时关闭入口门。() 发布时间:2021-01-10 23:45 │ 来源:www.tikuol.com 题型:判断题 问题: 循环水泵倒转时应紧急关闭出口门,无效时关闭入口门。()
题型:判断题 ______ the new medicine for a year and we'll see how well it works. [ ]A. Try out B. Make out C. Give out D. Pick out 查看答案