下面二叉树表示的简单算术表达式为（ ）。
- A.10*20+30-40
- B.10*（20+30-40）
- C.10*（20+30）-40
- D.10*20+（30-40）
正确答案及解析
正确答案
解析
本题由二叉树可知，表达式最后计算的为-，其次为*，最先做的为+，根据选项可知本题选C选项。
也可将A、B、C、D四个选项对应的二叉树全部画出，找出相符的选项。
包含此试题的试卷
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