{图} 2008年1-5月,移动电话长途通话时长约是固定传统长途电话通话时长的多少倍?A.3.4 B.2.5 C.1.9 D.0.5

作者: tihaiku 人气: - 评论: 0
问题 {图} 2008年1-5月,移动电话长途通话时长约是固定传统长途电话通话时长的多少倍?
选项 A.3.4 B.2.5 C.1.9 D.0.5
答案 C
解析 895.2/(1+28.4%)/352.1/(1-4.6%)=1.9,选C

相关内容:2008年,1-5月,移动电话,长途,时长,传统,长途电话

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