将 78 分解质因数的正确结果是( )A.78=13 × 6B.78=3 × 2...

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【单选题】

将 78 分解质因数的正确结果是( )

78=13 × 6

78=3 × 2 × 2 × 2 × 11

78=2 × 3 × 13

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【判断题】( )气缸缓冲的调整方法是从缓冲阀全开状态慢慢节流,元冲击时再固定。

正确

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