The conference has been held to discuss the effects of tourism ______ the wildlife in the area.

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问题 The conference has been held to discuss the effects of tourism ______ the wildlife in the area.

选项 A、in
B、on
C、at
D、with

答案B

解析会议已经讨论了关于对这一地区野外旅行的影响。本题考查介词用法。讨论哪个方面的问题用on。故选B。

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大学英语三级B级

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