He is not such a man cares for himself only.A. whoB. thatC. whomD. as

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A. who
B. that
C. whom
(答案→)D. as
解析：考查固定结构such……as。such...as用于引导定语从句，as 是关系代词，引导定语从句，在从句中作宾语。such...that 用于引导结果状语从句。句意：他不是一个只关心自己的人。故选D。