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Vivien Thomas, who had no formal medical training, in struggling against overwhelming odds, he became a cardiac surgeon and eventually to receive an honorary doctorate from Johns Hopkins University.
答案:E
问题:看不出来E比其它选项好在哪里了,排除BCD是因为having么? 查看答疑
问题:请问老师,d选项的having had 和 struggled都看成主动的have done作状语并列为啥不行 查看答疑

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