英语问题若干1.PORTION,RATIO,PROPORTION,RATE的区别2.句子:Of major concer

来源：学生作业帮编辑：作业帮分类：英语作业时间：2024/07/09 00:59:31

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

PORTION 是‘部分’的意思等于 part
RATIO 是比率,用于两个东西相比,比如：男女比率是 103:100
PROPORTION 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,死亡率都是用这个.
Of major concern to Amtrak and its advertising agency DDB Needham,were the long-distance western routes where ridership had been declining significantly
主句里有be动词一般现在时或一般过去时的句子,毫无疑问的一定就是be + 表语的系表结构做谓语.
Of major concern to Amtrak and its advertising agency DDB Needham
肯定是主语（不过介词短语做主语有点怪,怀疑句子不完整,楼主多贴点出来或HI我）
were the long-distance western routes where ridership had been declining significantly 系表结构做谓语
其中the long-distance western routes是表语
where ridership had been declining significantly是定语从句修饰routes

英语问题若干1.PORTION,RATIO,PROPORTION,RATE的区别2.句子:Of major concer proportion percentage rate ratio的区别 rate和 proportion的区别谁知道proportion和ratio的具体区别解释说明Rate 和 Ratio 的区别! rate 和　ratio的用法和区别? 小问一下ratio和proportion的区别啊! rate和proportion的区别还有什么时候加s 以例句说明并解释portion,proportion,fraction三者的联系与区别 rate和proportion有什么区别 proportion和ratio翻译成“比例”有什么区别 the job -hunting rate of english major