题目内容：
The _______ of human knowledge are being pushed further. （分数：1 分） A. boundaries
B. limits
C. borders
D. edges
参考答案：
选择题：The _______ of human knowledge are being pushed fu
- 题目分类：河南财经政法大学-法学-大学英语4
- 题目类型：选择题
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A. boundaries
B. limits
C. borders
D. edges