题目内容：
心理学家皮亚杰认为儿童认知发展的前运算阶段处于（ ）。
A.0~2岁
B.2~7岁
C.7~11岁
D.11~15岁
参考答案：
答案解析：
选择题：心理学家皮亚杰认为儿童认知发展的前运算阶段处于（ ）。
- 题目分类：教师资格
- 题目类型：选择题
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