单项选择题
A.用R×10K档,测量毫安表(0~10或0~200)线柱两端,若两表指针均发生偏转则为正常
B.用R×1K档,测量毫安表(0~10或0~200)线柱两端,若两表指针均发生偏转则为正常
C.用R×100Ω档,测量毫安表(0~10或0~200)线柱两端,若两表指针均发生偏转则为正常
D.用R×10Ω档,测量毫安表(0~10或0~200)线柱两端,若两表指针均发生偏转则为正常
E.用R×1Ω档,测量毫安表(0~10或0~200)线柱两端,若两表指针均发生偏转则为正常