2011年我国对《中华人民共和国建筑法》进行了第一次修订,进行了哪些修改()。
A.养老保险
B.医疗保险
C.失业保险
D.工伤保险
参考答案:B
It was in the hall______ we usually have dinner______ we had a dancing party last night.[ ]
A. where; that
B. that; where
C. where; which
D. which; where
如果是中国国籍的航空器,飞机的机号就应该与()类似。
A.B9999
B.CN2323
C.B8888
D.CN2526