It is reported that _______ the young, with their parents working in distant cities, suffer from a sense of loneliness.

A．the most of

B．the majority of

C．the number of

D．a large amount of

盐酸利多卡因

A．在酸性条件下，和亚硝酸钠与β-萘酚反应，呈橙红色
B．在碳酸钠试液中，与硫酸铜反应，生成蓝紫色配合物
C．与硝酸反应，显黄色
D．加入三氯化铁试液，显紫红色
E．加入三氯化铁试液，生成赭色沉淀
以下药物的鉴别反应是