单选题
After the use of the laser beam, surgeons can perform operations which ______.
A、
leave the patients with negative effects
B、
can. treat only human eye disease
C、
do little damage to the patients themselves
D、
make the patients need a long time to recover
【正确答案】
C
【答案解析】
[精解] 信息来自：Each painter is telling us something，showing us something…．
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