2. 外语
  3. In arithmetic, a number stands for the size of a set of things.

In arithmetic, a number stands for the size of a set of things.

admin2013-01-10  63
问题 In arithmetic, a number stands for the size of a set of things.
选项 A、measures
B、estimates
C、cancels
D、represents
答案D
解析 represents“象征，代表”，与划线词意义相当。A项measure“测量，衡量”；estimate “评估，估计”，cancel“取消，去除”。
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