题目内容：
计算a3·a4的结果是（ ）.
A．a5 B．a7
C．a8
D．a12
参考答案：
答案解析：
单选题：计算a3·a4的结果是（ ）.
- 题目分类：小学数学
- 题目类型：单选题
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B．a7
C．a8
D．a12
B．a7
C．a8
D．a12
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