题目

高温下硫酸亚铁发生如下反应：2FeSO4Fe2O3＋SO2↑＋SO3↑，若将生成的气体通入氯化钡溶液中，得到的沉淀物是( ) A．BaSO3和BaSO4     B．BaS       C．BaSO3     D．BaSO4 答案：答案 D(南京市2008—2009学年度第一学期期末调研测试卷)—Dad, can I surf the Internet? —Again? I wish that you ______ going on line ______ your health.A．know; will do harm toB．knew; are doing harm toC．know; have done harm toD．knew; were doing harm to