回答：c-d^2=6① c-d^2+20-100=106② 不是两个方程吗
我要他，他懂得些英语和法语。I will pardon you, who are honest. 我愿意宽恕你，你是诚实的。4.在强调句型中多用who，在口语中who可以省略。例如：I think it is you who should come here tomorrow.我认为你明天应该来这儿。It is he who can do this work. 只有他能够干此工作。
I will pardon you,who are honest.我愿意宽恕你,你是诚实的.4.在强调句型中多用who,在口语中who可以省略.例如：I think it is you who should come here tomorrow.我认为你明天应该来这儿.It is he who can do this work.只有他能够干此工作.在以下情况多用that.例如：5.当关系代词在从句中...
I will pardon you, who are honest. 我愿意宽恕你，你是诚实的。4.在强调句型中多用who，在口语中who可以省略。例如：I think it is you who should come here tomorrow.我认为你明天应该来这儿。It is he who can do this work. 只有他能够干此工作。5. 当先行词有比较长的后置定语的时候...
1.当先行词是persons, people, those时。2.当先行词是he, one, all, any, they等时，例如：He who has not reached the Great Wall isn't a true man. 不到长城非好汉。3.在非限定性定语从句中用who。4.在强调句型中多用who，在口语中who可以省略。It is he who can do this work. ...
我要他，他懂得些英语和法语。I will pardon you, who are honest. 我愿意宽恕你，你是诚实的。4.在强调句型中多用who，在口语中who可以省略。例如：I think it is you who should come here tomorrow.我认为你明天应该来这儿。It is he who can do this work. 只有他能够干此工作。
I will pardon you,who are honest.我愿意宽恕你,你是诚实的.4.在强调句型中多用who,在口语中who可以省略.例如：I think it is you who should come here tomorrow.我认为你明天应该来这儿.It is he who can do this work.只有他能够干此工作.在以下情况多用that.例如：5.当关系代词在从句中...
我要他，他懂得些英语和法语。I will pardon you, who are honest. 我愿意宽恕你，你是诚实的。4.在强调句型中多用who，在口语中who可以省略。例如：I think it is you who should come here tomorrow.我认为你明天应该来这儿。It is he who can do this work. 只有他能够干此工作。
I will pardon you, who are honest. 我愿意宽恕你，你是诚实的。4.在强调句型中多用who，在口语中who可以省略。例如：I think it is you who should come here tomorrow.我认为你明天应该来这儿。It is he who can do this work. 只有他能够干此工作。在以下情况多用that。例如：5.当关系...
一、如果后面没有任何其它人称，就用does e.g. Who does this?二、如果后面有其它人称，根据后面的人称变化 1. Who do you want to know? 这一句后面有人称you，所以who后面用do 2. Who does she like? 这一句后面有人称she，所以who后面用does 当后面的人称为 I, you, we, they（...