A is to B,what C is to D.想请英语高手分析下此句中what 的成分以及这是什么

“A is to B what C is to A is to B as C is to D是什么意思?as 可以换成what吗?what C is to D,that is A to B是什么意思? Do you know___?A.what is tom from B.what Tom is C.have to wear a confused expression的翻译,A is to B what C is to D A is to B as C is to as可以改为what吗? 帮忙分析一下这个句子的成分：A is to B what C is to D . 请分析一下“A is to B what C is to D”这个句子的结构? A is to B what C is to D 是什么句型? A is to B what C is to D的例句 A is to B what C is to D 是什么句型? Engines are to machines ______hearts are to animals.A.as B.that C.what D.which选C不是有A is to B (just) as C is to D=A is to B what C is to D __cool it is to take a picture with YaoMing!A:what B:what a C:how what （ ）is tom want to be?A,do B,is C,does A is to B what C is to D,中,what的词性,帮忙举例子说明. 关于A is to B what C is to D 的句式中WHAT 可以用AS代替吗? A is to B what C is to D 的句式中WHAT引导的是什么从句 “A is to B what C is to D”句型,what起什么成分作用?这是从句吗? a is to b what c is to d中的what 是关系代词但它引导的是什么从句?