At times, worrying is a normal _____ to a difficult event or situation-a loved one being _____ in an accident,

for example. [ ]

A. response; injured

B. reaction; wounded

C. reply; hurt

D. reflection; died

患者，男，30岁，右下腹持续隐痛，轻度阵发性加剧，有轻度发热，恶心，胃纳不香，大便干结，小便微黄，苔白厚腻，脉弦滑，宜选（）

A.芒硝

B.大黄

C.火麻仁

D.商陆

E.石膏