题目内容:
What can be inferred from the feedbacks of the surgeons?
A.3D glasses system has the highest technology. B.3D glasses system is no better than 2D one.
C.The glasses-free system is superior to the 2D one.
D.3D glasses system is more helpful than the glasses-free system.
参考答案:【答案仅供学习,请勿对照自行用药等】
答案解析: