在一本 300 页的书中,数字“1”在书中出现了多少次?A.140 B.160 C.180 D.120

作者: tihaiku 人气: - 评论: 0
问题 在一本 300 页的书中,数字“1”在书中出现了多少次?
选项 A.140 B.160 C.180 D.120
答案 C
解析 解析:解题时不妨从个位、十位、百位分别来看,个位出现“1”的次数为 30,十位也为 30,百位为 100。

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