参考解答
正确答案:A
6.【答案】A。解析:二级等差数列,相邻两项的差为等差数列4,5,6,(7)。
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怎样理解对立统一规律?
怎样理解对立统一规律?
( ) 4 18 48 100A.-16 B.-8 C.-4 D.0
( ),4,18,48,100A -16 B -8 C -4 D 0
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