单选题
What do we find after the development of the laser in the 1960s?
A、
Industrial revolution brought surgery changed greatly.
B、
Medical help became available for industrial workers.
C、
The study of art went through a complete revolution.
D、
Human being's methods in surgery changed greatly.
【正确答案】
D
【答案解析】
[精解] 全文都是讨论激光手术所带来的巨大变革和美好前景。
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