发电厂接触()的设备系统中,不能用铜质材料。A、稀硫酸;B、苛性碱;C、氨;D、乙炔 发布时间:2017-08-03 19:55 │ 来源:www.tikuol.com 题型:多项选择题 问题: 发电厂接触()的设备系统中,不能用铜质材料。A、稀硫酸;B、苛性碱;C、氨;D、乙炔。
题型:多项选择题 Our country_____rapidly in recent years, but she is still a _____ country. [ ]A. develops; developing B. develops; developed C. has developed; developing D. has developed; developed 查看答案