設(shè)在X=0處可導(dǎo),則a、b的值為:()
A.a=1,b=0 B.a=0,b為任意常數(shù) C.a=0,b=0 D.a=1,b為任意常數(shù)
極限的值是:()
A.1 B.0 C.2 D.不存在
設(shè),則x=0是f(x)的:()
A.可去間斷點(diǎn) B.跳躍間斷點(diǎn) C.振蕩間斷點(diǎn) D.連續(xù)點(diǎn)