when david is twice as old as he is now he will four times as old as his daughter Jane will be in five years time .If in
when david is twice as old as he is now he will four times as old as his daughter Jane will be in five years time .If in 1990 ,four years ago,he was four times as old as his daughter ,in what year was she born?
英语人气：312 ℃时间：2019-10-17 02:22:28
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这是2010年NECCS试题：翻译：当david的年龄是现在年龄的两倍的时候,他的年龄是他的女儿jane五年后年龄的四倍.如果在1990年（四年前）,他的年龄是他女儿年龄的四倍,jane是什么时候出生的?1983年 令现在david年龄x,他...
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