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【多选题】
蒸发操作的目的是()
A.
获得浓缩的溶液直接作为化工产品或半成品
B.
脱除溶剂并增至浓饱和状态,然后再加以冷却,即采用蒸发、结晶的联合操作以获得固体溶质
C.
脱除杂质,制取纯净的溶剂
D.
加热物质,以达到所需温度
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参考答案:
举一反三
【单选题】According to the passage, which of the following is most probably the writher’s problem as a new teacher?
A.
She had blind trust in what she learnt at college.
B.
She didn’t ask experienced teachers for advice.
C.
She took too much time off to eat and sleep.
D.
She didn’t like teaching English literature
【单选题】Which of the following is the most effective advice to follow in organizing a persuasive resume?
A.
Avoid using more than six headings.
B.
Always include a career objective to show that you have a clear goal.
C.
List education before work experience.
D.
List work experience before education.
【单选题】我国古诗、成语蕴含着丰富的哲理,下列与“一着不慎,满盘皆输”蕴含相近哲理的诗句是______。
A.
会当凌绝顶,一览众山小
B.
野火烧不尽,春风吹又生
C.
功盖三分国,名成八阵图
D.
欲穷千里目,更上一层楼
【简答题】2017九年级上册物理寒假作业答案练习3   初三物理寒假作业参考答案
【判断题】加工细长轴时,三爪跟刀架比两爪跟刀架的使用效果好。
A.
正确
B.
错误
【简答题】Which advice is most similar to the advice you would provide?
【单选题】在心脏射血期内
A.
房室瓣开,动脉瓣关
B.
房室瓣关,动脉瓣开
C.
房室瓣开,动脉瓣开
D.
房室瓣关,动脉瓣关
【简答题】2017七年级上册英语寒假生活指导作业3答案 初一英语寒假生活指导作业参考答案
【简答题】作业3参考答案.doc
【简答题】There are several ways you can find out the countries and places you wish to visit. If you friends have been there, you can talk to them. They may give you detailed and vivid descriptions about the pl...
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