试述磺胺类药与甲氧苄啶（TMP）合用的意义与机制。

SVT的定义？

手指关节梭形成见于（）

A.风湿性关节炎

B.指关节外伤

C.类风湿关节炎

D.尺神经损伤

E.正中神经损伤

Many of the things that_________ thought useless_________ man today.[ ]

A. used to be; used to serve

B. were used to being; are used to serving

C. were used to be; are used to serve

D. used to be; are used to serve

汇票专用章由（）组织销毁，销毁情况应专题书面报总行备案。

A.一级分行

B.二级分（支）行

C.支行

D.总行