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
Pure science, leading to the construction of a microscope ______.
A．is not always as pure as we suppose
B．may lead to anti-scientific "impure" results
C．necessarily results from applied science and the discovery of a cell
D．necessarily precedes applied science, leading to the discovery of the cell
单项选择题
The massive investment put into the constructing huge draggers resulted in ______.
A．more economic disaster areas in Newfoundland
B．the recovery of the marine ecosystem
C．the improvement of fishing practices
D．the devastating fishing
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