Jack,I'm afraid I'll turn to you.I think chemistry is _ physics.A.as a difficult subject as B.a subject the same difficult as C.as difficult a subject as D.the same difficult subject as

Jack,I'm afraid I'll turn to you.I think chemistry is _ physics.
A.as a difficult subject as B.a subject the same difficult as C.as difficult a subject as D.the same difficult subject as

选c 第一个as 的用法相当于so
so/as +adj +a+名词
such+a+adj+名词

ASDSADASD