题目内容
【题目】There’s about 400mm rain fall in this area a year _____
A. on average B. in average
C. of average D. for average
【答案】A
【解析】考查短语辨析。句意：有约这个地区一年的平均雨量为400mm。on average为固定搭配，意为“平均”。故选A项。
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题目内容
【题目】There’s about 400mm rain fall in this area a year _____
A. on average B. in average
C. of average D. for average
【答案】A
【解析】考查短语辨析。句意：有约这个地区一年的平均雨量为400mm。on average为固定搭配，意为“平均”。故选A项。