直肠手术最易损伤的泌尿器官是（）
A.膀胱
B.精索
C.前列腺
D. * *
E.输尿管
参考答案：E
解析：直肠手术最易损伤的泌尿器官为输尿管。
From the school name ______ on the package, we guessed that it might belong to a student of our school.
A．saved
B．marked
C．prepared
D．shown
下列选项中哪个是新霉素的特点
A．宜全身给药
B．口服吸收好
C．可用于肠道感染和肠道消毒
D．耳毒性小
E．肾毒性小
