题目

阅读理解Tomato Festival Started in 2005, the Tomato Festival has grown into a local tradition in Malta． In recent years, the festival has added amusement park-style rides and a yearly Creature Feature, which screens old horrible movies．There are also dance competitions, parades and pancake breakfast．Third weekend in August． Address: 833 Tinkham Rd, Fountain Park, Wilbra-ham, Massachusetts 01095 Phone: （413）599-0010 Brat Days Don't mistake this festival for a day filled with poorly behaved children． Begun in 1953, the gathering is the biggest festival in the city each year an我们在学习化学知识时，认识了一些离子，那么下列离子中能在含Cl-、H+、SO42-、Na+的溶液中大量共存的是A. Ag+ B. Cu2+ C. CO32- D. OH- B 【解析】A、Ag+ 与Cl- 形成氯化银白色沉淀；B、Cu2+ 与 Cl-、H+、SO42-、Na+ 均不反应； C、CO32- 与 H+ 反应生成二氧化碳； D、OH- 与H+ 反应生成水。故选B。 点睛∶掌握常见物质的溶解性，灵活应用复分解反应的条件是顺利完成本题的重要保证。