2. 外语
  3. If a solid pyramid has 4 vertices and 4 faces , how many edges does the pyramid have?

If a solid pyramid has 4 vertices and 4 faces , how many edges does the pyramid have?

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问题
If a solid pyramid has 4 vertices and 4 faces , how many edges does the pyramid have?
选项 A、2
B、3
C、4
D、6
E、8
答案D
解析 假如一个立体四角锥有4个顶点和4个面，该四角锥有多少条边? 本题的正确的答案是(D)。Solid，n．固体，立体(几何)；Pyramid n．锥体(四角锥)；Vertices，n．顶点(pl.)。
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