-Howmanyyearshaslifebeenonearth?-years,Ithink.()A.5millionsB.5millionsofC.MillionofD.Millionsof
-How many years has life been on earth?
-______ years,I think.( )
A. 5 millions
B. 5 millions of
C. Million of
D. Millions of
设函数f(x)在x=a的某个邻域内有定义,则f(x)在x=a处可导的一个充分条件是?请写出分析过程! 2020-03-30 …
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石块A自塔顶自由落下H时,石块B自离塔顶h处自由下落,两石块同时着地,则塔高为()A.H+hB.( 2020-06-12 …
f(0)=0,则f(x)在x=0处可导的充要条件为A.lim(1/h^2)f(1-cosh),h→ 2020-06-12 …
请教catalan数网上对catalan数的通项有两种说法一种说catalan数满足递归式:h(n 2020-06-28 …
-Howmanyyearshaslifebeenonearth?-years,Ithink.()A 2020-07-17 …
导数乘法证明中h是什么意思?(f(x)g(x))'=lim(h→0)[f(x+h)g(x+h)-f 2020-07-22 …
f(x)=sinx,求f(1+h),[f(1+h)-f(1)]/h根据和差化积公式:sinα-si 2020-08-02 …
excel中这个公式如何用,=$H$2*E2+$H$3*E3+$H$4*E4+$H$5*E5+$H$ 2020-10-31 …