4.(单选题,2分)用 .1000mol/L NaOH 滴定-|||-0.1000mol/LHCl 时,pH突跃范围为 4.30--|||-9.70,若用 0.01000mol/LNaOH 滴定-|||-..01000mol/LHCl 时pH突跃范围为() ()-|||-A. 3.30-10.70-|||-B. 5.30-8.70-|||-C. 3.30-7.00-|||-D. 4.30-7.00