在下列四个日光灯的接线图中,S为启动器,L为镇流器,正确的是( )
答案:A
日光灯电路的接法是:启动器与灯管并联,镇流器与灯管串联,故选项A正确.
阻塞性黄疸可见 ()
A.脓血便
B.鲜血便
C.柏油样便
D.灰白色便
E.稀糊状便
Her clothes were too()for the occasion.
A.relaxed
B.casual
C.indifferent
D.flexible