请大神解答这道英语高等有机化学习题解答题，谢谢了。

来源：蜘蛛抓取(WebSpider) 时间：2015-04-08 22:06 标签： 英语题目解答
跪求化学大神帮我解决这道题_百度知道
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这是问题吗？不是工艺流程图吗
我是学物理的
她还发来这些说让我参考
传上来的不是答案吗？化工原理好好学，还是挺重要的
这个是她发给我的例题
我不是学化学的
是学物理的
亲 如果你会做
能不能帮忙做一下。。。
这是化工原理课程设计吧，你可去百度下，能找到类似的
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出门在外也不愁问题补充&&
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Powered by这个英语题目不懂 请各位大神解答 谢谢!词汇与结构201316.The region has plenty of coal resources ______ lacks enough water.A whichB as long asC moreoverD while词汇与结构201317.It was getting _______, he had to stop to have a rest. A very darkerB dark and d_百度作业帮
这个英语题目不懂 请各位大神解答 谢谢!词汇与结构201316.The region has plenty of coal resources ______ lacks enough water.A whichB as long asC moreoverD while词汇与结构201317.It was getting _______, he had to stop to have a rest. A very darkerB dark and d
词汇与结构201316.The region has plenty of coal resources ______ lacks enough water.A whichB as long asC moreoverD while词汇与结构201317.It was getting _______, he had to stop to have a rest. A very darkerB dark and darkC darker and darkerD darkest and arkest交际英语201318.--I was worried about my maths, but Mr. Brown gave me an A.--___________.A Don’t worry about it.B Congratulations! That’s a difficult course.C Mr. Brown is very good.D Good luck to you!交际英语201319.-- Could I ask if you approve of our plan? --______ A It's very kind of you to ask me.B You're welcome.C That sounds workable to me.D That's not my business.词汇与结构201320.If we have a strong will, we will overcome any difficulty ______ great it is. A whateverB howC what求化学大神看下这道选择题，谢谢了_百度知道
求化学大神看下这道选择题，谢谢了
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我有更好的答案
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32：88＝7：4选择56
麻烦请采纳鼓励下，谢了
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出门在外也不愁求英语大神解答一道英语题All flight HAVING BEEN CANCELED because of the bad weather,they had to go to there by train.这里为什么要用HAVING BEEN,为什么不能直接用canceled或者had canceled?麻烦各位了,谢谢_百度作业帮
求英语大神解答一道英语题All flight HAVING BEEN CANCELED because of the bad weather,they had to go to there by train.这里为什么要用HAVING BEEN,为什么不能直接用canceled或者had canceled?麻烦各位了,谢谢
All flight HAVING BEEN CANCELED because of the bad weather,they had to go to there by train.这里为什么要用HAVING BEEN,为什么不能直接用canceled或者had canceled?麻烦各位了,谢谢
这是非谓语动词的用法,因为前面没有主语所以不是从句,其实补全句子就是Because all flight had been cancelled because of the bad weather,加一个表示原因的连词就用had cancelled了,没有连词就只能判断动词跟逻辑主语（主句的主语）的主被动关系,主动用ing,被动用ed
因为全句的意思是“因为坏天气，所有航班均被取消，他们不得不乘火车了。”不得不乘火车的原因是航班从那时取消一直到现在仍未恢复，该动作一直在持续。 所以用的是完成时。另外All flight HAVING BEEN CANCELED because of the bad weather是一个状语短语，不是状语从句所以不能用动词的时态， 经常用分词短语和不定式代替。...

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