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Today the American doctor is one of the foremost heart-transplant surgeons in th
Today the American doctor is one of the foremost heart-transplant surgeons in th
游客
2025-03-20
19
管理
问题
Today the American doctor is one of the foremost heart-transplant surgeons in the world, ______tens of such operations each year.
选项
A、to perform
B、performing
C、to performing
D、perform
答案
B
解析
本题考查非谓语动词的用法,据题意,现在这位美国医生是世界上最重要的心脏移植外科医生之一,每年做数十例这种手术。分词的逻辑主语也是the American doctor,所以用现在分词。
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