试题与答案

若a,b,c成等差数列,且a,c,b成等比数列,则a:b:c=( )。

题型:填空题

题目:

若a,b,c成等差数列,且a,c,b成等比数列,则a:b:c=(    )。

答案:

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15.(1)年轻时所经历的磨砺与苦难;(2)因祖国多灾多难而产生的忧患意识;(3)对祖国刻骨铭心的思念。 16.不矛盾。前面是说自己的人生经验和感觉,后面是说年轻人,因为年轻人是“另一批正在飞翔的蝴蝶”。17.(1)希...

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