题目内容：
根据下列文章，请回答题。
The animal source which provides the most protein for human being is____．
参考答案：
答案解析：
单选题：根据下列文章，请回答题。The animal source which provides the most protei
- 题目分类：公共英语三级
- 题目类型：单选题
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The animal source which provides the most protein for human being is____．