Thanks to Mrs Smith, the father and the son eventually after ten years’ cold relationship

Thanks to Mrs Smith, the father and the son eventually after ten years’ cold relationship between them.
A. took up
B. picked up
C. made up
D. turned up

A. took upB. picked up(答案→)C. made upD. turned up解析：考查动词短语辨析。句意：感谢史密斯太太，这对父子在十年冷战后中终于和好了。take up拿起，从事；pick up（自然而然）学会，捡起，用车接某人；make up弥补，和好，编造；turn up开大，出现。故C正确。

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D解析人类镰刀型细胞贫血症根本原因是基因突变的结果，所以D选项正确。