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单选题
What should you do if you have to work in front of the computer?
A
Eat healthy foods.
B
Clean the eye by using cold water.
C
Wear a pair of sunglasses.
D
Have a rest after working for a while.
参考答案
参考解析
解析：
根据第二段的第三句话“If you happen to work in front of the computer, it is best to take a break every once in a while.”可知，在电脑前工作一段时间后，我们应休息一会。故选项D正确。
根据第二段的第三句话“If you happen to work in front of the computer, it is best to take a break every once in a while.”可知，在电脑前工作一段时间后，我们应休息一会。故选项D正确。
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