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34x5/11x1/10x11/51 =34x(5/11x11/51x/10) =34x(5/51x1/10) =34x1/102 =1/3 如果本題有什麼不明白可以追問,如果滿意請點擊右下角“好評” 另外發並點擊我的頭像向我求助,請諒解,
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