数字万用表测量二极管时拨（）挡位。
A、ACV
B、hFE
C、DHm
D、ACA
参考答案：C
强制戒毒工作由( )主管。
A．卫生部门 B．民政部门C．公安机关 D．强制戒毒所
Home to______and gangsters, officials and laborers, refugees and artists, thecity was, in its prime, a metropolis that exhibited all the hues of the human character.
A. magnates B. magnets C. machines D. magnitudes
