问题
选择题
As you know,reading in the sun _____ your eyes. [ ]
A. is harm to
B. is harmful to
C. does harmful to
D. harm to
答案
答案：B
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As you know,reading in the sun _____ your eyes. [ ]
A. is harm to
B. is harmful to
C. does harmful to
D. harm to
答案：B