可出现牵涉痛的疾病是（）

A.带状疱疹

B.肋软骨炎

C.肋间神经炎

D.心绞痛

E.肺癌

In the dominant firm model of oligopoly, it is least likely that one firm:（）

A. is the innovation leader in product development.

B. has a significant cost advantage over its competitors.

C. produces a relatively large share of the industry’s production.