C.有两个相异的实根-|||-D.有五T关依-|||-4.若对任意 in (a,b), 有 '(x)=g'(x), 则 ()-|||-A.对任意 in (a,b), 有 f(x)=g(x)-|||-B.存在 _(0)in (a,b), 使 ((x)_(0))=g((x)_(0))-|||-C.对任意 in (a,b), 有 (x)=g(x)+(C)_(0) (C0是某个常数)-|||-D.对任意 in (a,b), 有 (x)=g(x)+C C是任意常数)-|||-中盛在(a,b)可导,则 ()