简述痔的进一步检查程序
参考答案：
（1）肛门视诊。
（2）直肠指诊。
（3）肛门镜检查。
（4）直肠镜检查。
His wife is finding fault with him, which makes him very angry.
A．constantly
B．regularly
C．previously
D．instantly
胶带粘接各台阶等分的不均匀度为（）。
A.小于0.5mm
B.小于1mm
C.1～2mm
D.可以大于2mm
