下列反应的离子方程式书写不正确的是（ ）
A．氢氧化钡溶液中滴加硫酸氢钾溶液至pH＝7：
Ba2＋＋2OH－＋2H＋＋SO42－＝BaSO4↓＋2H2O
B．在氯气通入澄清石灰水中：Cl2＋2OH－＝Cl－＋ClO－＋H2O
C．用SO2还原含Cr2O72－的酸性废水：Cr2O72－ + 3SO2 + 2H+ = 2Cr3+ + 3SO42－+ H2O
D．用小苏打治疗胃酸过多： CO32－＋2H＋＝CO2↑＋H2O
答案：D
从方框中选择恰当的句子补全对话。（其中有两个多余） A: Hi, Mikc! B: Hello! A: ________ B: Yes, but one thing annoyed me. A: ________ B: On the bus, I saw a woman eating bananas and threw the banana skins out to the window. A: ________ B: I told her what she did was not right. A: You were right. Throwing the litter away will pollute the environment. B: I Agree with you. A: _________ B: She didn’t take my words at all. A: No wonder(难怪) you are so angry.
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