题目内容：
良性肿瘤和恶性肿瘤又怎么区别呢？关键看肿瘤是否变大。
A.正确
B.错误
参考答案：
选择题：良性肿瘤和恶性肿瘤又怎么区别呢？关键看肿瘤是否变大。
- 题目分类：中国大学MOOC慕课
- 题目类型：选择题
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