()已经成为全面建成小康社会的最大约束条件和突出短板。
A.经济发展
B.污染
C.人口
D.国际关系
参考答案:B
——Who do you know lit the Olympic flame on August 8,2008?
——The former gymnastics star Li Ning.
A.was it that
B.that it was
C.that was it
D.it was that
简述我国应采取怎样的策略以应对世界能源形势。