肠梗阻的临床表现为（ ）；（ ）；（ ）；（ ）。
参考答案：腹痛 腹胀 呕吐 停止自肛门排气排便
Comrade Lei Feng often thought more of ____ than himself. [ ]
A. other
B. the other
C. others
D. another
脊髓前角病变产生（）
A.节段性痛觉和温度觉缺失
B.霍纳征
C.周围性瘫痪
D.精细触觉障碍
E.中枢性瘫痪
