题目内容：
3. —Mr Hu, can you tell us how to learn math well? ( )—Sure. But remember nothing can be learned hard work.(本题1.5分)
A. by
B. at
C. without
D. for
参考答案：
选择题：3. —Mr Hu, can you tell us how to learn math well?
- 题目分类：平顶山学院-大学英语2（高起本）
- 题目类型：选择题
- 查看权限：VIP
—Sure. But remember nothing can be learned hard work.(本题1.5分)
A. by
B. at
C. without
D. for