Letters to the editor must carry the writer’s full name, which indicates that writers are held______

题干

Letters to the editor must carry the writer’s full name, which indicates that writers are held________for what they say.

A：considerate

B：reasonable

C：independent

D：previously

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D

）马老师想知道学生每天上学路上要花多少时间，于是让大家将每天来校的单程时间写在纸上用于统计，下面是全班45名学生单程所花时间（单位：分）与对应人数（单位：人）的统计表，则关于这45名学生单程所花时间的数据的中位数是（　　）

单程所花时间	5	10	15	20	25	30	35	40
人数	6	6	8	14	5	4	1	1