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. Which of the following is widely accepted as an ideal to be aimed at

A．A maximum of discussion.
B．Formal teaching.
C．Closed-circuit television.
D．Preparation.

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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. Which of the following is widely accepted as an ideal to be aimed at 您的浏览器不支持 audio 元素。