柴葛解肌汤与大柴胡汤的组成药物中均含有的是（）
A．枳实、芍药
B．桔梗、芍药
C．黄芩、半夏
D．黄芩、桔梗
E．黄芩、芍药
参考答案：E
Americans eat____ vegetables per person today as they did in 1990. [ ]
A. more than twice
B. as twice as many
C. twice as many as
D. more than twice as many
运输、储藏包装标签和外标签都不含有的内容是（）
A.成分、性状
B.生产企业
C.执行标准
D.包装数量
