常温下，下列各组离子一定能大量共存的是（ ）
A．Na+、K+、Cl-、CH3COO-
B．Ba2+、K+、SO42-、CO32-
C．Al3+、K+、CO32-、Cl-
D．Na+、Fe3+、Cl-、SO42-
A．离子之间不发生任何反应，可大量共存，故A正确；
B．Ba2+与SO42-、CO32-反应生成沉淀而不能大量共存，故B错误；
C．Al3+与CO32-发生互促水解反应而不能大量共存，故C错误；
D．离子之间不发生任何反应，可大量共存，故D正确．
故选AD．
Ten years ago, most Chinese teenagers chose politicians (政治家) as their idols（崇拜者）. Who do they admire(崇拜) today？ According to a survey released by Beijing Normal University, their top three choices are their father, their mother and Jay Chou. Who are Teens’ readers’ heroes？ Let’s have a look. Jiang Yiling, 14, Wuhan：My idol is my mom. When I was young I had a surgery (手术) on my leg and couldn’t walk for a long time. My mother left her job to take care of me. She carried me back and walked up and down the stairs every day. My mother is a woman with a powerful heart. Lin Yijian, 12, Xiamen：I admire Arnold Schwarzenegger (阿诺德·施瓦辛格). I love his movies, in which he often plays a good guy beating bad people. His muscles (肌肉) also add to his charm (魅力). And then he became the governor of California．I hope to live a life like his. Ma Huilin, 14, Anshan：I appreciate (欣赏) Taiwanese singer Jimmy Lin(Lin Zhiying). He sings well and he is also a funny guy. I admire my English teacher, too. She speaks very good English. My dear parents are also my idols. My father is an excellent swimmer and my mother is good at math. Chen Shengsheng, 14, Shanghai：I admire Su Shi, a talented writer in ancient China．Reading Su’s poems and other writings, I see a person with a noble (高贵的) personality and brilliant talent. I appreciate his attitude towards life. He suffered setbacks (挫折) but never gave up. 任务：请阅读上面短文，根据短文内容完成下面表格中的有关信息。
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