Jack, I’m afraid I’ll turn to youI think chemistry is physics．A. as a difficult subject

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

A. as a difficult subject asB. a subject the same difficult as(答案→)C. as difficult a subject asD. the same difficult subject as解析：考查as + adj. + (a/an) + n. + as结构，句意：我认为化学和物理是一样难的学科。故选C。

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