what is well known is that China is becoming more and more influential in the world today.这句话前面的what引导的句子是什么成分,后面的that又是什么成分 到底哪个是主语?

tom,you played so well .but,i ____ you played the paino.A did not know B had not knownit is well known和 what is well known 和as is well known的用法和区别不要百度百科! It is well-known it is well known that What I have known? What is mean I do not known 是什么意思呀 Well,you like,is what I 问一个英语智力题 what well-known phrase is suggested by the following word picture? it is well-known that,还是it is well known that到底是哪一个?well known和 well-known有什么区别？ Well known As is well-known,China has the largest population,中As is well-known 是什么从句 as it is well known 和 as is well known的句子结构区别? she is well known.等不等于she is known well?为什么 what you don't realize is that being well known for something isn't always a good thing. _____ is well known to everybody is that Nanning ,Wuhan,Changsha and Chongqing are extremly hot in summer.A.It B.as C.that D.what 答案选what,as is known to everybody,it is known to everybody that,what is known to everybody is that 不是都适用 I Kill More and More time to Known what is the only one. ___ is well-known is that China is rich in natural resources.选择：A which B as C it D what 不是IT，句中有IS THAT ----is well known to us all that Taiwan belongs to China.--- is known to us all ,Taiwan is part of--is known to us all that Taiwan is part of china---is known to us all is that Taiwan is part of chinaA.it B.As C.That D.what四题应选什么,为什 翻译：As is well known to us all,the earth goes around the sun.It is well known to us all that the earth goes around the sun.和What is well known to us is that the earth goes around the sun. 这三句意思相同吗?