题目内容：

Questions are based on the following passage.

1.

A.Over $100 million. B.Over $4.5 billion.

C.It has almost tripled on the past decade. D.It has almost quadrupled since 1995.

2.

A.The source of tuition. B.The arrival of more students.

C.Subjects students major in. D.The rise of students’ wealth.

3.

A.Growth of the Chinese economy.

B.Exchange of culture, ideas and skills.

C.More and more Chinese students in the U. S.

D.Chinese students' favorite subjects.