单项选择题

Questions 11 to 18 are based on the conversation you have just heard.

A．She hasn’t called the travel agency yet.
B．The man may have to reschedule his trip.
C．She doesn’t know when her semester ends.
D．The man should take his vacation somewhere else.
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单项选择题
What point does the author intend to put across in the first paragraph
A．Teaching and research are two contradictory fields.
B．Research can never be overemphasized.
C．The relationship between research and teaching should not be simplified.
D．It is not right to overestimate the importance of teaching.
单项选择题
Which of the following statements can we know from the fourth paragraph
A．Distinguished professors at research universities should focus on research only.
B．The separation of teaching from research may affect the quality of future scientists.
C．It is vitally important to improve teaching in elementary schools in order to train new scientists.
D．It is impossible to combine research with teaching due to the rapid development of modern science.
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