D.胃酸缺乏
E.慢性失血
参照答案
1~10:CDBDEEDEEE
11~20:CADAA BDDDD
21~30:ECADD CCCCE
31~40:ADAAA CEDAD
41~50:CBECBDCCBE
51~60:EBECCCCBEC
61~70:DBCDABEDEE
71~80:ACDDBABEEB
81~90:DADCB CBDAA
91~100:EDCCC CADDA
101~110:BBCDB DEECA
111~120:DDBDE DADEA
121~130:ADBCB CACBA
131~140:ABEDC EBCAC
141~150:DDCCD CADEB
151~160:EDABD ADECD
161~170:ADBDEBBABC
171~180:ECDDDABBCD
181~190:DDBCCEAADD
191~200:CEBEA AEEAE