Mr. Brown is an experienced doctor. He is always when faced with emergency.A. as poor as a

问题补充：

Mr. Brown is an experienced doctor. He is always when faced with emergency.

A. as poor as a church mouse

B. as busy as a bee

C. as cool as a cucumber

D. as strong as a horse

答案：

A. as poor as a church mouse

B. as busy as a bee

(答案→)C. as cool as a cucumber

D. as strong as a horse

解析：句意:布朗先生是一位有经验的医生，当面对紧急情况时他总是镇定自若。as poor as a church mouse家贫如洗；as busy as a bee忙碌；as cool as a cucumber镇定自若；as strong as a horse非常健康。根据句意故选C。