以下疾病中不能除外的是：
A．直肠息肉脱出
B．内痔脱出
C．肛 * * 状瘤脱出
D．脱肛
E．以上均是
参考答案：E
以下程序运行后的输出结果是_________。main(){char c1,c2;for(c1=’’0’’,c2=’’9’’;c1
Table tennis is easy to learn, and, by the same token, boys don't need a lot of space to practice it.
A．by the same rule
B．symbolically
C．moreover
D．by logic
