智力题 JACK IS TWICE AS OID AS BILL,WHO IS EIGHT YEARS YOUNGER THAN BEN,WHO

智力题 JACK IS TWICE AS OID AS BILL,WHO IS EIGHT YEARS YOUNGER THAN BEN,WHO
数学人气:633 ℃时间:2019-08-21 06:08:12
优质解答
杰克的年龄是比尔的两倍,而比尔又比本年轻八岁.
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