Which of the following is harmful to your eyes if you keep doing it for a long time? A. B. C. D.
2022-09-27 18:26:32 20次 甘肃省武威市2019年中考模拟试卷一（无听力） 单选题 反馈错误 加入收藏 正确率 : 100%
题目内容：
Which of the following is harmful to your eyes if you keep doing it for a long time?
A. 
B. 
C. 
D. 
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