【題目】The conference was held to discuss the effect that tourism has ______ the wildlife in the area.

A.in B. on

C.at D. with

【答案】B

【解析】考查介詞。句意:舉行會(huì)議來(lái)討論旅游業(yè)對(duì)這個(gè)地區(qū)野生動(dòng)植物的影響。使用短語(yǔ)have effect on sth對(duì)……有影響。故選B。

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