求问point at,point to,point out有什么区别

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• pass away from可以加时间吗His wife Janet passed away 17 years ago. His wife Janet passed away from 17 years ago.The 70-year-old laid out the trees in a six-acre field but left a perfect heart shape in the middle with the point facing in the direction of her hometown.这几句有哪句是对的?如果有错请酌情修改一下,告知错的原因.不胜感激
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• from the point of view of与from the view of有什么区别为什么要加个point,重复累赘,英文不是十分简洁吗.
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• 高一英语语法--定语从句1.We are just trying to reach a point _____both sides will sit down together and talk.A.where B.that C.which(主要说明为什么不选B）2.The school is the one(that/which)he visited yesterdayThe school is the one(that/which)he studied at last yearThe school is the one(where/at which)he studied last year这三句有什么区别,为什么用的关系代词不一样【不懂者请勿胡乱作答,保证正确率】
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