在城市污水处理厂里,常设置在泵站、沉淀池之前的处理设备有()。 A.格栅 B.筛网 发布时间:2018-02-16 17:20 │ 来源:www.tikuol.com 题型:单项选择题 问题: 在城市污水处理厂里,常设置在泵站、沉淀池之前的处理设备有()。A.格栅B.筛网C.沉砂池D.上述三种
题型:单项选择题 I've become good friends with several of the students in my school __________I met in the English speech contest last year.A.whoB.whereC.whenD.which 查看答案
题型:单项选择题 The nurse is teaching a new group of mental health aides. The nurse should teach the aides that setting limits is most important for ().A.a depressed client.B.a manic client.C.a suicidal client.D.an anxious client. 查看答案