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treat...as... 把sth/sb看作。

本题里treat不是这个意思，是“对待”。as if接方式状语。

对待；看待： Children are taught to treat their parents and teachers with deference? 教育孩子们对父母师长要尊敬。 The engineer felt that he hadn't been treated fairly. 这位工程师觉得自己没有受到公平的待遇。 He treated the animal cruelly. 他残忍地对待这只动物。