题目

Most people know that Marie Curie was the first woman to win the Nobel Prize, and the first person to win it twice. However, few people know that she was also the mother of a Nobel Prize winner. Born in September, 1897, Irene Curie was the first of the Curies’ two daughters. Along with nine other children whose parents were also famous scholars, Irene studied in their own school, and her mother was one of the teachers. She finished her high school education at the College of Sevigne in Paris. Irene entered the University of Paris in 1914 to prepare for a degree in mathematics and phys（10哈尔滨14）.除去下列物质中的少量杂质，所选用的试剂及操作方法均正确的是（   ）选项物质（括号内为杂质）试剂操作方法AKCl( KClO3 )少量MnO2加热BNaOH(NaCl)适量稀盐酸蒸发、结晶CCO2(CO)足量O2点燃D稀盐酸（稀硫酸）适量氯化钡溶液过滤