【简答题】常温下,向 10mL0.10 mol/L CuCl 2 溶液中滴加 0.10mol/L Na 2 S 溶液,滴加过程中- lgc(Cu 2+ ) 与 Na 2 S 溶液体积 (V) 的关系如图所示。下列说法正确的是 A . K sp (CuS) 的数量级为 10 - 21 B .曲线上 a 点溶液中, c(S 2 - )•c(Cu 2+ ) >K sp (CuS) C . a 、 b 、 c 三点...
【简答题】— Is Shanghai bigger than Tokyo (东京)? — No. Tokyo has over 30 million people, it is bigger than _____ in China. [ ] A. any other city B any other cities C. any cities D. any city