具有行气止痛、杀虫疗癣功效的药物是（）
A.川楝子
B.丁香
C.佛手
D.沉香
E.香附
参考答案：A
— Look, that’s Tom—the lost boy!
— It’s really_______great comfort to see him safe again. He is sure to bring_______comfort to his worried mother.
A．a; a
B．the; the
C．a; /
D．the; /
常用的载气有哪些？
