()1.—Excuseme.Isthereabanknearhere?-Thebankisveryfarfromhere.A.Yesthereis.B.Yesitis.C.Nothereisn’t.D.Noitisn’t.
( ) 1. —Excuse me. Is there a bank near here?
- The bank is very far from here.
A. Yes there is. B. Yes it is.
C. No there isn’t. D. No it isn’t.
看一道函数解答题（超简单的）已知f（x+1）=x^2+2x,求f（x)令x+1=t,则t=x-1所 2020-06-06 …
已知f(x-1)=x^2-4x,求函数f(x),f(2x+1)的解析式令t=x-1,则有：x=t+ 2020-06-17 …
f(x)=1/3x^3-x-1.f(x)在t≤x≤t+3上最大值为M（t）,最小值为m（t）记g（ 2020-07-13 …
()14.Isthereanythingseriouswithhisstomach(胃)？A.We 2020-07-16 …
当x∈[0,4]求定积分∫1/(1+√x)dx设√x=t则t∈[0,2]dx=2tdt原式=2∫t 2020-07-23 …
x=t+1/t,y=t-1/t化成普通方程x=t+1/t,y=t-1/t(t为参数),化成x=t+ 2020-08-02 …
()1.—Excuseme.Isthereabanknearhere?-Thebankisvery 2020-08-04 …
Jessica:Whatareyoudoingnow?Susan:I61.(listen)tothe 2020-10-30 …
f(t)=1/(1-1/t),t>1求值域原题是：f(t)=t/(t-1),t>1求值域。法一：f( 2021-01-22 …
f(t)=1/(1-1/t),t>1求值域原题是：f(t)=t/(t-1),t>1求值域。法一：f( 2021-01-22 …