The dictionary isn't Alan's, but________is it? [ ]
A. whose
B. who
C. what
D. when
答案:A
短暂性抽动障碍的病程()慢性运动或发声抽动障碍的病程()Tourette综合征的病程()
A.小于2周
B.小于2月
C.小于6个月
D.小于12个月
E.大于12个月
AD258机器打印复印时文字不规则变淡()
A.驱动板故障
B.激光故障
C.显影仓内有异物进入
D.转印辊接触不良