假设（AX）＝4652H，（DX）＝0234H，依次执行SUBAX，0F0F0H和SBBDX，0F0F0H两条指令后，寄存器AX和DX的值分别为（）

(B.)lim_(h to 0)(f(a+2h)-f(a+h))/(h)存在. (C.)lim_(h to 0)(f(a+h)-f(a-h))/(2h)存在.

(f(x)在 _{0)=(x)_(0) 处可导,且 lim _(harrow 0)dfrac (f({x)_(0)+2h)-f((x)_(0)-h)}(2h)=

6、单选-|||-f-|||-A .lim _(harrow 0)dfrac (f({x)_(0)+5h)-f((x)_(0)+2h)}(h)=f((x)_(0

已知 (0)=3, 则 lim _(harrow 0)dfrac (f(-h)-f(0))(3h)=

(6)设f(x)在x0处可导,则 lim _(harrow 0)dfrac (f({x)_(0)+h)-f((x)_(0)-h)}(h)= () ;-|||-(

若函数f（x）在点x0处可导，则极限underset(lim)(h→0)(f（(x)_(0)+3h）-f（(x)_(0)-h）)/(2h)=（ ）A. 4f′（

设函数 f(x) 在 x=0 处可导，则 lim_(h arrow 0) (f(2h)-f(-3h))/(h) = （ ）A. $ -f'(0) $B. $ f

若极限 lim_(h to 0) (f(x_0 + 2h) - f(x_0))/(h) = (1)/(2)，则导数值 f(x_0) = ( )。A. $-\fr

[试题]假设(AX)=73H，(DX)=85H，执行下列后(AX)=______。1 MOV AX， DX2 NOT AX3 ADD AX， DX4 INC AX

(B)lim_(hto0)(1)/(h^2)f(sqrt(1+h^2)-1)存在.(1)/(h^2)f(tan h-sin h)存在. (D)lim_(hto