国家开放大学 / 综合英语（3）
正确率：100%
This passage implies that discrimination is a problem which _ _ _ _ _ _ _ _ _ .
A. many races in the United States have experienced
B.will still be very serious in the United States in the future
C.has already been solved in the United States
D. is strongly opposed by many different races in the United States
A. many races in the United States have experienced
B.will still be very serious in the United States in the future
C.has already been solved in the United States
D. is strongly opposed by many different races in the United States
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