In Korea, the gross domestic product has increased_______a 3. 2 percent rate in the past decade.

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问题 In Korea, the gross domestic product has increased_______a 3. 2 percent rate in the past decade.

选项 A、at
B、for
C、of
D、in

答案A

解析 凡是考查介词的题目,请务必注意它和后面名词的关系!后面的名词rate有“价格,速率;比率”的意思,且任何一种意思通常都与at搭配使用。因为at具有可以和具体数字搭配的属性。
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