Which of the following statements is true according Paragraph three? A.College students have to pay more for textbooks than four years ago. B.The NACS hardly encourages students to use used books or rent texts. C.The annual tuition of college students has been declining slowly. D.$655 for textbooks is a big sum compared to the annual tuition.
A.College B. B.The C. C.The D. D.$655 E.
【参考答案】
D 第三段第二句说明课文的费用比四年前略低,相差近50美元。第三句讲这是由于美国大学商店协会鼓励学生使用旧课本。......