试题与答案

在我市新一轮农村电网改造升级过程中,需要选一个电阻调试某村某设备的线路,但调试者

题型:选择题

题目:

在我市新一轮农村电网改造升级过程中,需要选一个电阻调试某村某设备的线路,但调试者手中必有阻值分别为0.5KΩ,1KΩ,1.3KΩ,2KΩ,3KΩ,5KΩ,5.5KΩ等七种阻值不等的定值电阻,他用分数法进行优选试验时,依次将电阻从小到大安排序号,如果第1个试点与第2个试点比较,第1个试点是一个好点,则第3个试点值的阻值为 [ ]

A、1KΩ

B、1.3KΩ

C、5KΩ

D、1KΩ或5KΩ

答案:

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