泌尿外科手术可选用全麻的是 A．睾丸手术 B．肾切除术 C．手术时间很长者 D．TU

主食中谷类的营养特点有哪些

The old man sat in front of the television every evening, happy _____ anything that happened to be on.

A．to watch

B．watching

C．watched

D．to have watched

早晨起来背对太阳，前边是______，后边是______，______是北，左边是______．

男性20岁，1年来中上腹时有疼痛，痛向背部放射，尤以夜间为甚，且先后有3次黑便。X线钡餐检查无异常发现，该患者的诊断宜考虑为()

A．球后溃疡

B．胰腺癌

C．胆道出血

D．幽门管溃疡

E．结肠癌