单选题In line 12, the sentence Consider hemoglobin serves most nearly to ______.Aintroduce a new argumentBextend a metaphorCintroduce an exampleDprovide a summaryEdetermine a pattern
单选题
In line 12, the sentence Consider hemoglobin serves most nearly to ______.
A
introduce a new argument
B
extend a metaphor
C
introduce an example
D
provide a summary
E
determine a pattern
参考解析
解析：
作者用血红蛋白的例子来证明我们的基因记录里其实包含有很多无用的进化残余，故选C项。
作者用血红蛋白的例子来证明我们的基因记录里其实包含有很多无用的进化残余，故选C项。
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