10世纪初,统一契丹各部的是[ ]
A.阿保机
B.宋太祖
C.元昊
D.阿骨打
答案:A
"We can not afford limited progress. We need rapid progress," Ban said at the Third World Climate
Conference in Geneva, ______ by the World Meteorological Organization (WMO). [ ]
A. organized
B. being organized
C. organizing
D. was organized
下列选项中,属于城市防灾措施的是()。
A.技术性措施
B.公共性措施
C.工程性措施
D.政策性措施
E.组织性措施