Continue the following number series with two numbers that can best continue the series. 1 10 3 9 5 8 7 7 9 6 ? ?

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问题 Continue the following number series with two numbers that can best continue the series. 1 10 3 9 5 8 7 7 9 6 ? ?

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答案11,5

解析 Alternating numbers go up by 2,and down by 1.
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