直肠触诊触及质地坚硬,表面凸凹不平的包块,应考虑的是()
A.直肠周围脓肿
B.直肠息肉
C.直肠癌
D.肛裂
E.直肠炎
参考答案:C
We have finished the project finally . No one can imagine the difficulty we had _____the problem,
A.to solve
B.solved
C.solving
D.solve
结肠双对比X线造影检查可显示的最小解剖单位是()
A.结肠袋
B.结肠带
C.黏膜皱襞
D.结肠无名沟
E.以上都不是