早教吧作业答案频道 -->英语-->
quantitiesofmoney作主语,为什么谓语要用复数?Quantitiesofmoneyareneededtoequiptheschool.money是不可数名词,为什么谓语还用复数形式?Aquantityofstorybookshasbeenboughtforthechildren.storybooks是复数,为
题目详情
quantities of money作主语,为什么谓语要用复数?
Quantities of money are needed to equip the school.money是不可数名词,为什么谓语还用复数形式?A quantity of story books has been bought for the children.story books是复数,为什么谓语要用单数形式?
Quantities of money are needed to equip the school.money是不可数名词,为什么谓语还用复数形式?A quantity of story books has been bought for the children.story books是复数,为什么谓语要用单数形式?
▼优质解答
答案和解析
Quantitie加了S肯定是复数,形容很多.A quantity of 当然是单数了.
看了 quantitiesofmo...的网友还看了以下:
多元复合函数的求导疑问求高手解答!Z=f(x+y,xy),求Z先对x再对y的二阶偏导.解答是:令U 2020-04-26 …
试写出系列函数复合函数的表达式1:y=根号u,u=x平方+2x-12:y=u平方+2u+1,u=s 2020-06-03 …
复变函数一道若u(x,y)与v(x,y)分别是解析函数f(z)的实部与虚部,且f(z)求导不等于0 2020-06-03 …
设f(z)=u+iv在复平面解析,f(0)=0,v(x,y)=2xy并满足则u(x,y)=?复变函 2020-06-12 …
已知x/y+z+u=y/z+u+x=z/u+x+y=u/x+y+z,求(y+x/z+u)+(y+z 2020-06-12 …
已知x/(y+z+u)=y/(z+u+x)=z/(u+x+y)=u/(x+y+z),求(x+y)/ 2020-06-12 …
设y=x^u,求y^n=?这是书上的解法是y'=ux^(u-1),y''=u(u-1)x^(u-2 2020-06-18 …
模拟三设函数u(x,y)=B(x+y)+B(x-y)+∫[x-y→x+y]C(t)dt,其中函数B 2020-07-21 …
很简单的复变函数题:如果u(x,y)和v(x,y)可微,那么f(z)=u(x,y)+iv(x,y) 2020-07-29 …
复变函数中f(z)=u(x,y)+iv(x,y)化成f(z)的形式中用的设零法是怎么证明的已知f(z 2020-10-30 …