题目内容：
胃肠道的功能主要有下面（）。
A.消化功能与吸收功能
B.排泄功能与屏障功能
C.屏障功能与分泌功能
D.排泄功能与调节功能
参考答案：
选择题：胃肠道的功能主要有下面（）。
- 题目分类：中国大学MOOC慕课
- 题目类型：选择题
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