預(yù)約課程還可獲贈免費(fèi)的學(xué)習(xí)復(fù)習(xí)診斷
點(diǎn)擊預(yù)約→免費(fèi)的1對1學(xué)科診斷及課程規(guī)劃
A farmer has five sons.They are Ted,Bob,Tom,John and Bill. John has no elder brother. He was four years older when his first younger brother was born. The number of Tom's elder brothers is equal to his younger brothers. Bill will be twenty-one years old next year, and he is five years older than Bob. Bob is two years younger than Tom. Ted was sad because he has no younger brother. There are twelve years between him and John.
點(diǎn)擊預(yù)約→99元快課，一次課聽懂一個知識點(diǎn)
小一至小五年級期末試題答案
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