—How _________ are they? —Three yuan.[ ]
A. many
B. much
C. that
答案：B
治肺热咳嗽宜用（）
A.二母宁嗽丸
B.清肺抑火丸
C.苏子降气丸
D.镇咳宁糖浆
E.川贝止咳露
简述理中丸的主治。
