问题
单项选择题
听句子，缩写原文。（）
A．Many university students prefer soft drinks to fresh fruits.
B．Most of them are first-or-second year college students.
C．A number of college students refuse to disclose their identities.
D．Not many students are interested in our research projects.
答案
参考答案：B
解析：
[听力原文]Of the students participating in our university’s research project, 73% classified themselves as freshmen and sophomores.