____________were a highly civilized people long before the Europeans were.A.Chinese peopleB.A ChineseC.The ChineseD.Chinese 为什么选C不选D

____________were a highly civilized people long before the Europeans were.A.Chinese peopleB.A ChineseC.The ChineseD.Chinese 为什么选C不选D 英语单词:a+t+h Y.H.A是什么意思? 什么是a-H(无机化学) l a s h A+H上市公司是什么意思? 是an h,还是a h A H H A A H H A A H H A.问图中的字母A在前2006个字母中出现了多少次? MOV A,#00H DEC A DEC A MOV 18H ,A(18H)= 矩阵中A^H是什么意思 Their mother is a (h ) 埋头苦干:work like a h() a bit h------ 填什么 Сh!ňa是什么意思 3h+2a=5.8,3a+2h=5.7.求h×a f(x)在x=a处可导, lim(h→0) [f(a+h)-f(a-2h)]/h= lim(h→0) [a^(x+h)+a^(x-h)-2a^x]/h^2有谁帮个忙谢谢 函数f(x)在x=a处可导,则Lim h→a [f(a+3h)-f(a-h)]/2h=?确定就是h→a