A:苯和溴水、铁屑混合制溴苯
B:用溴水除乙烷中混有的乙烯
C:苯与浓硝酸和浓硫酸的混合物共热至70℃~80℃制硝基苯
D:用酒精和浓盐酸通过加热来制取乙烯
华枝睾吸虫身体上最发达的器官是( )
—Yes.He needs to eat more food.
My brother _____ the army for three years.