题目

It is heartening to see millions on the earth who had nothing but a record of misery and hunger                  the chance to improve their life.        A．having      B．to have     C．have  D．who have 答案：C16．如表除杂方法中，所用试剂和操作均正确的是（　　）选项物质（括号内为杂质）杂质除杂的试剂和方法ANaOH溶液（Na2SO4）过量的Ba（OH）2溶液过滤BKCl（MnO2）水溶解、过滤、洗涤干燥CCO（CO2）足量氢氧化钠溶液通入并干燥DNaCl溶液（Na2CO3）足量稀盐酸蒸发A．AB．BC．CD．D