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单选题
The factory 1 quality index showed between year 1 and year 2 the same proportional increase as between year 4 and year 5 .正确答案: B可在小程序上查看本题解析，扫码查看
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单选题
The factory 1 quality index showed between year 1 and year 2 the same proportional increase as between year 4 and year 5 .
