DOS是。DISKK OPERATING SYSTEM的简称。( )
参考答案:对
Because the shop_______, all the T-shirts are sold at half price.
A.has closed down
B.closed down
C.is closing down
D.had had closed down
按我国《失业保险条例》规定,小张与所在企业依法履行缴费义务满8年后,他可领取失业保险金的期限最长为().
A.6个月
B.12个月
C.18个月
D.24个月