陈旧性肛裂伴有肛管狭窄者,手术方式宜选择()
A.挂线法
B.纵切横缝法
C.肛裂侧切术
D.切开疗法
E.扩肛法
参考答案:B
The survivors of the crashed plane had no food or water and were________the extreme cold weather.[ ]
A.in the possession of
B.in the charge of
C.at the mercy of
D.at the risk of
下列几个不同数制的整数中,最大的一个是______。
A.(1001001)2 B.(5A)16C.(70)10 D.(77)8