阅读短文，选择正确答案。 China Youth says that more and more girl students have entered colleges to study in the recent few years. As we know, once the number of boys was larger than that of girls and boys did much better than girls in our country for a long time. Now, things have changed a lot. In recent years, the proportion of girl students is growing fast. In 1998, about 39.7% of college students were girls. In 2000, it was 41.07% and in 2001, the number was 42.14%. There are several reasons for this. Firstly, there is little difference between boys and girls in their intelligence (智力). That's to say, girls are as clever as boys. And boys have more interests than girls, so they may not always do well in their study. Secondly, girls are more careful than boys. They work harder at school and they do better in all exams. Another reason is that with the development of society, people pay more and more attention to girls' education. 1. China Youth says that more and more ______. [     ] A. boys are clever than girls B. boys can't go to school C. girls have entered colleges D. girls begin to study at school 2. 42.14% refers to (指) the number of ______. [     ] A. girls at schools in 1998 B. girls in colleges in 2001 C. boys at schools in 2001 D. boys in colleges in 1998 3. The writer gave us ______ reasons to explain the question. [     ] A. two B. three C. four D. five 4. What does the underlined word 'proportion' mean in Chinese? [     ] A. 身高 B. 比例 C. 特性 D. 速度 5. Which of the following sentences is TRUE? [     ] A. Boys may not do well in their study as girls because they don't like studying. B. Boys are much cleverer than girls because they're interested in many things. C. Girls' intelligence is the same as boys'. D. Girls study harder, but they couldn't get higher marks than boys.