单项选择题

Questions 17-20 are based on the following passage about U. S. universities. You now have 20 seconds to read the questions 17-20. How many separate classes would the students be divided into

A．300.
B．200.
C．90.
D．80.

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单项选择题

单项选择题

Questions 17-20 are based on the following passage about U. S. universities. You now have 20 seconds to read the questions 17-20. How many separate classes would the students be divided into 您的浏览器不支持 audio 元素。