By mentioning “traffic light”…——2011 高考英语第 55 题答案解析

2011_江苏卷 (英语)

2011 Jiangsu Question 55 Single-choice Differentiating

56.By mentioning “traffic light”and “windshield wiper”,the author indicates that countless inventions
are .

A. beneficial,because their inventors are famous

B. beneficial,though their inventors are less famous

C. not useful, because their inventors are less famous

D. not useful, though their inventors are famous

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