A:或
B:
C:
D:1或
— How do you like the regulations of our school?
— The regulations are strict with the students and they require that students _______ at least 90% of the lectures.
“贞观之治”是对( )在任时的赞誉。
如图,直线m∥n,△ABC 的顶点B,C 分别在直线n,m 上,且∠ACB=90°,若∠1=40°,则∠2 的度数为( )
查字典填空。
“匣”用部首查字法,应先查____部,除去部首还有____画。这个字的最后一笔是____。“匣子”的意思是____。