so...as 只能用在否定句中.as...as可用于肯定和否定句 有这个说法么

so...as 只能用在否定句中.as...as可用于肯定和否定句 有这个说法么 not so...as用在否定句中是怎么回事?有人说not so...as只能用在否定句中,谁能给我解释一下这是什么概念啊?什么叫“只能用在肯定句中”,举个例子看看,最好能配合着not as...as只能用在肯定句中 as.as与so .as有何区别?是不是as.as用在肯定句中,so .as用在否定句中,还是因为别的原因? I am not （so还是as）healthy as himnot as as 是不是等于so as as as不是用在肯定句中么，这不是否定句么，怎么也能用呢 as far as ;so far as区别1.as far as、so far as2.as long as、so long as这两组的区别在哪里? 书上说否定的时候用so..那个 ,那么as那个既可以用于肯定句也可以用于否定句 还是只能够用于肯定句? 我想要正 so as 是用在否定句中还是肯定句中 as/so…… as……用在肯定句还是否定句 否定句能用AS WELL吗 as...as为什么变否定句时会有not so.as?so...as与as...as算是同义句吗? As well只用于否定句吗? I DON'T THINK HE IS AS GOOD AS HER.句中,能用“so as结构吗? 请大人分析下一道英语选择题Would you please be _______ do it for me,please?A.kind enough B.kind as to C.so kind to D.so kind as to我选了A =_||| 请亲分析下但是我请老师是so ...as一般都用在否定句中，即not so ...as He doesn't play tennis _____he did last year.A so better as B so wonderful as C as good as D as well as我想知道为什么C不对 貌似so as 和 as as 都可以用在否定句中的么 还有人说选D 我被搞混了 在as as结构的否定句中 后边的as可以省略?比如 he is not as angry as before 那么 后边的as before可以省略?么he is not as angry so...as 和as..as的用法,急!~10. I have never seen _____ a car _____ this before. A. such, that B. as, as C. so, as D. so, that答案选B ,可我觉得应该选C,否定句中不是用so as 吗? so long as 和as long as有什么区别?as .as 既可用于肯定中也可用于否定句中,而so.as 只能用于否定句中.这上面是比较级的用法,那么作“只要”的意思,两者有什么区别? As fruit needs not only sunshine but cold nights and chilling showers to ripen it,so character needs not only joy but trial and difficulty to mellow it此句中as so 为什么不能用As as so...as和as...as有什么区别?是不是用于否定句时,前面都需要加not