题目

A: What did the teacher say just now? B: She told me ________ I got high marks in the English test. A. where           B. that         C. whether      D. what 答案：B下列除杂质选用的试剂和主要操作都正确的是 物质杂质试剂主要操作ACO2HClNa2CO3溶液洗气BNaHCO3溶液Na2CO3溶液CaCl2溶液过滤CCl2HCl饱和NaCl溶液洗气DNaCl溶液Na2SO4溶液过量BaCl2溶液过滤