可用来鉴别己烯、甲苯、乙酸乙酯、苯酚溶液的一组试剂是( )
A:FeCl3溶液、溴水
B:碳酸钠溶液、溴水
C:酸性高锰酸钾溶液、溴水
D:酸性高锰酸钾溶液、FeCl3溶液
—Look! All students in the classroom are preparing for the coming exams_____.
—Yes, the exams are very important to them.