正确答案: C

高锰酸钾 → 锰酸钾+ 二氧化锰 + 氧气

题目：下列反应属于分解反应的是（     ）

解析：C

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举一反三的答案和解析：

[单选题]28， Mr Henry always went to the town on foot because___________

the town was near to his village

解析：28．A【解析】由文章第三句“Sometimes he went to the town which is not far away．．．竹知，他不坐车是因为镇子很近。

[单选题]29． The writer thinks that people in large cities should __________ ．

make their used water clean again

解析：29.C【解析】由第四、五两段的描述可知，作者认为大城市的水应该被净化后重新利用。

[单选题]2．—What-s __________?—He has a headache．

the matter

[单选题]下列文学常识搭配有误的一项是（ ）

《曹刿论战》——左丘明——《战国策》