英语问题若干1.PORTION,RATIO,PROPORTION,RATE的区别2.句子:OfmajorconcerntoAmtrakanditsadvertisingagencyDDBNeedham,werethelong-distancewesternrouteswhereridershiphadbeendecliningsignificantly这个句子里的主,谓,麻

Question

英语问题若干
1.PORTION,RATIO,PROPORTION,RATE的区别
2.句子:Of major concern to Amtrak and its advertising agency DDB Needham,were the long-distance western routes where ridership had been declining significantly这个句子里的主,谓,
麻烦写得详细一些
我脑子转得慢

Answer 1

PORTION 是‘部分’的意思 等于 partRATIO 是比率,用于两个东西相比,比如：男女比率是 103:100PROPORTION 是比例,用一部分和整体的关系,比如：男生占全体 51%RATE 是率,比如：银行利率,GDP增长率,出生率,死亡率都是...