商品的二因素之间的矛盾只有通过商品交换才能解决。( )
参考答案：对
----No one is so ____ about his joy as Doctor Li.
----You are right. He devotes all his time and energies to his cause.
A．mad
B．wild
C．serious
D．crazy
抗结核药物属于抑菌药的是（）
A.异烟肼
B.利福平
C.链霉素
D.乙胺丁醇
E.吡嗪酰胺
