业主收楼后（）内必须建立相应的业主档案。
A、半个月
B、1个月
C、2个月
D、3个月
参考答案：B
—How was your National Day vacation?
—Great! We went sightseeing and spent the _____ days at home．
A．last two relaxing
B．two last relaxing
C．relaxing last two
D．last relaxing two
月门背面的题额为何字？题于何时？是指什么？
