欲使醋酸溶液中的CH3COO-浓度增大,可加入 [ ]
A、NaOH
B、NaHCO3
C、CH3COOK
D、H2O
AC
Father won’t agree to fly to Paris for the holiday. It is expensive.
A.far too
B.too much
C.very much
D.too far
地球表面最长和最活跃的断层是什么?