问个英语选择题.Our company -------new profit records through techni

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问个英语选择题.Our company -------new profit records through technical innovation —15% rate
Our company -------new profit records through technical innovation —15% rate growth in the last two years and 10% this year .
A.has set B .has been setting 请问为什么

A只是表示过去做过一次
B表示过去做过,而且现在还在做
每年都创造利润新高的意思,然后后面简略介绍了一下今年比去年高了多少.
这个动作还需要继续持续,所以选B

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