单项选择题

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

A．Members have a narrow range of topics to discuss.
B．Members bring up the most important issue.
C．Members have interesting topics to discuss.
D．Members have little knowledge.
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单项选择题
A scientist being interested in adding to our general knowledge about oxygen would probably call his approach ______.
A．applied science
B．environmental science,
C．pure science
D．agricultural science
单项选择题
A．Because they see a growing market for printers.B．Because small companies need more hard copies.C．Because people are concerned about the environment.D．Because printers in many offices are working overtime.
A．Because they see a growing market for printers.
B．Because small companies need more hard copies.
C．Because people are concerned about the environment.
D．Because printers in many offices are working overtime.
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