压力容器的安全阀应()安装。A.倾斜 B.水平 C.垂直 发布时间:2017-07-05 01:16 │ 来源:www.tikuol.com 题型:单项选择题 问题: 压力容器的安全阀应()安装。A.倾斜B.水平C.垂直
题型:单项选择题 She couldn't _____ her words _____ by the students. [ ]A. get; understandingB. get; understood C. make; to understand D. make; understand 查看答案