下列属功能性便秘的疾病是（）
A.肠粘连
B.肠梗阻
C.结肠良性或恶性肿瘤
D.先天性巨结肠症
E.肠易激综合征
参考答案：E
I was told that his uncle had gone to France . [ ]
A. long before
B. shortly after
C. before long
D. long ago
红细胞代偿性增高的原因，应除外（）
A.新生儿
B.登山运动员
C.真性红细胞增多症
D.某些先天性紫绀性心脏病
E.慢性肺心病
