第一套人民币中1000元纸币有()种版别。
A.8
B.7
C.6
D.5
参考答案:C
改正句子中的错字。
(1)这卦信今天必需写好。 ( )
(2)老师代我们去效游。 ( )
(3)不故后果地乱用化学品,造成了一系列生态灾难。 ( )
—Did they clean the house yesterday afternoon?
—______. They cleaned it this morning.
A.No, they don’t
B.Yes, they did
C.No, they didn’t
D.Yes, they do