A:苯在常温下与浓硝酸混合(硝基苯)
B:乙醇与酸性KMnO4反应(CH3COOH)
C:甲苯与氯气在光照下反应(对氯甲苯)
D:将乙烯通入到水中(CH3CH2OH)
The villagers here ____ ____ wells ____ their water.
Four men are . They cannot see.