Which of the following words comes first in the dictionary?

A．trick

B．trousers

C． treasure

D．treat

患者呕吐吞酸，嗳气频繁，胸胁闷痛，脉弦。治疗应选用（）

A.干姜

B.高良姜

C.吴茱萸

D.丁香

E.小茴香