挑战习题
1/5单选题
难度:

1.

下列关于单安法测电阻试验中所需器材,正确的一组是(    )


A


  1. 电压表、电流表、待测电阻、电源、开关两个、导线若干
B


  1. 电流表、待测电阻、定制电阻、电源、开关两个、导线若干
C


  1. 电流表、滑动变阻器、待测电阻、电源、开关一个、导线若干
D


  1. 定值电阻、电压表、待测电阻、电源、开关两个、导线若干
提示1:
PHAgc3R5bGU9Im1hcmdpbi1sZWZ0OjE4LjBwdDsiPuWNleWuieazlea1i+eUtemYu+S4jemcgOimgeeUteWOi+ihqDwvcD4=
提示2:
PHAgc3R5bGU9Im1hcmdpbi1sZWZ0OjE4LjBwdDsiPuWNleWuieazlea1i+eUtemYu+W/hemhu+imgeacieS4gOS4quW3suefpemYu+WAvOeahOWumuWAvOeUtemYuzwvcD4=
正确答案:Qg==
PGRpdj48cD4mbmJzcDsmbmJzcDsmbmJzcDsmbmJzcDsmbmJzcDsg5Y2V5a6J5rOV5rWL55S16Zi75LiN6ZyA6KaB55S15Y6L6KGo77yM5omA5LulQeOAgUTplJnor688L3A+PHAgc3R5bGU9Im1hcmdpbi1sZWZ0OjE4LjBwdDsiPuWNleWuieazlea1i+eUtemYu+W/hemhu+imgeacieS4gOS4quW3suefpemYu+WAvOeahOWumuWAvOeUtemYu++8jOaJgOS7pUPplJk8L3A+PHAgc3R5bGU9Im1hcmdpbi1sZWZ0OjE4LjBwdDsiPuetlOahiO+8mkI8L3A+PC9kaXY+