题目

Miss Wang teaches us very                     . She is a                     teacher.        A．good, good                                B．good, well        C．well, good                                  D．well, well 答案：C   向滴有酚酞的NaOH溶液中，逐渐滴入稀盐酸至过量，下面叙述正确的是（ ）A．溶液由红色变为无色，PH逐渐增大B．溶液由无色变为红色，PH逐渐减小C．溶液由红色变为无色，PH逐渐减小D．溶液颜色不变，PH逐渐增大