单项选择题

Questions 19—22 are based on the following passage. You now have 20 seconds to read the questions 19—22.
Who needs ESP courses most

A．Professionals.
B．Beginners.
C．College students.
D．Intermediate learners.

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单项选择题

单项选择题

Questions 19—22 are based on the following passage. You now have 20 seconds to read the questions 19—22. Who needs ESP courses most 您的浏览器不支持 audio 元素。