---Howdoyouknowtheyoungmanstandingoverthere?---Oh,Iheardthatheisleaderofafootballteaminuniversityinourcity.()A.the,theB.a,anC./,anD./,a
---How do you know the young man standing over there?
---Oh,I heard that he is ______ leader of a football team in ______ university in our city.( )
A. the,the
B. a,an
C. /,an
D. /,a
设y=f(x,t),且方程F(x,y,t)=0确定了t=t(x,y),求dy/dx457页的答案在 2020-07-22 …
给出一棵树的逻辑结构T=(K,R),其中K={A,B,C,D,E,F,G,H,I,J}R={r}r 2020-07-22 …
已知函数f(x)满足f(x+y)+f(x-y)=2f(x)×f(y).(x∈R,y∈R.),且f( 2020-07-27 …
定义在R上的函数f(x)对任意x,y∈R,都有f(x+y)=f(x)+f(y)-1定义在R上的函数 2020-08-01 …
设定义在R上的函数F(X),对任意X,Y∈R有F(X+Y)=F(X)f(Y)设定义在R上的函数f( 2020-08-02 …
求区分极坐标方程和参数方程极坐标方程是x=r*Cos(θ),y=r*Sin(θ),r是关于θ的一个 2020-08-02 …
对于积分上限函数∫(a,t)f(y)dy,知道被积函数是f(t).那么对于∫(a,t)f(x+y) 2020-08-02 …
若x/(y+z+t)=y/(z+t+x)=z/(t+x+y)=t/(x+y+z)即f=(x+y)/( 2020-10-30 …
几何画板中的一些函数,y=f(x),x=f(y),r=f(θ),θ=f(r)y=f(x)我知道r=f 2020-12-08 …
英语单词1.〔r,r,v,e,a,i]2.[i,t,f,r,s]重新排列一下这些字母,组成单词. 2021-01-21 …