7、 What is the main idea of the second paragraph? [ 2 分 ]
A. The higher one’s grade average, the more one has learned.
B. Our education system encourages competition for higher grades.
C. Grades are regarded as the criterion to evaluate students’ performances.
D. Competition for financial rewards is more intense in some fields than in others.
出自:乐山师范学院-高级英语

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