【单选题】【消耗次数：1】
在地质年代表中，晚古生代由老而新依次是( )。。（1.0分）
①
A.寒武纪、奥陶纪、志留纪；
②
B.B.泥盆纪、石炭纪、二叠纪；
③
C.泥盆纪、二叠纪、石炭纪；
④
D.三叠纪、侏罗纪、白垩纪
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【多选题】
20世纪90年代，党的十五大提出21世纪中国社会发展的“三步走”发展目标是（ ）。
①
第一个10年，全面建设小康
②
第二个10年，达到富裕小康水平
③
第三步，到21世纪中叶，基本实现现代化
④
第三步，到21世纪中叶，建成现代化强国
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