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【简答题】
某化工厂排除废酸水 200m 3 /d( 密度为 1.0 kg/L) ,其中含盐酸为 2% (重量比),硫酸为 1% (重量比);拟采用纯度 70% 熟石灰( Ca(OH) 2 )中和后排放;不均匀 系数取 1.1 。 问:每天需要消耗熟石灰是多少吨? 下周三上课前提交至网络平台
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举一反三
【单选题】She ______ a strong and positive influence over her friends.
A.
draws
B.
exerts
C.
ensures
D.
expends
【单选题】听力原文：W: Can you tell me some of your strong points? M: With my qualifications and experience, I feel I am hardworking, responsible and diligent in any thing I do. W: Give me a brief introduction of yo...
A.
Boss and employee.
B.
Teacher and student.
C.
Interviewer and candidate.
D.
Colleagues.
【简答题】你会读绕口令吗？请选词填空，将序号填入题前括号里。 1. We went to Spain in the rain, and to France to buy . [ ] A. shoes B. pants 2. We ate in Turkey and bought in China. [ ] A. turkey; china B. china; turkey
【简答题】听对话，选择相应的图片，将数字序号填入题前括号里。 ( ) ( )
【单选题】We tried to buy a new printer,but the model we wanted was sold out.
A.
too expe nsive
B.
not in the store
C.
in poorcondition
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