题目内容：
上述各项措施中哪项属于二级预防（ ）。 参考答案：
答案解析：
单选题：上述各项措施中哪项属于二级预防（ ）。
- 题目分类：公卫助理医师
- 题目类型：单选题
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第8题答案为
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The Works Project Administration could __________.
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Although Benjamin Banneker dedicated a lot to his country,
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第13题答案为
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