题目

-Wow, you look good．Your hair looks fantastic．You're such a wonderful friend．You’re so generous．I've always liked you．  - ________！Gel to the point．I haven't got food all day．     A．Enough         B．Thanks        C: Really        D．Humbug   答案：A下列各溶液中能大量共存的离子组是 A．碳酸氢钠溶液中：K+、SO42-、Cl-、H+ B．使pH试纸呈红色的溶液中：Fe2+、I-、NO3- 、Cl- C．使酚酞试液呈红色的溶液中：Mg2+ Cu2+、SO42-、K+ D．C(H+)=10-14mol/L的溶液中：Na+、AlO2-、S2-、SO42-