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2,3,5,7,11,13,(),19,… A.15 B.16 C.17 D.18
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1,2,5,10,(),26。 A.15 B.16 C.17 D.18
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4,3,2,0,-3,-8,()A.-15 B.-16 C.-17 D.-18
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5, 10, (), 34, 65, 130A.15 B.16 C.17 D.18
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今年是第()届安全生产月。A.15B.16C.17D.18
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调整每把刀片伸出刀壳组件距离必须基本相等约为()mm.A.15-16B.16-17C.17-18D.18-19
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电工作业人员必须年满()岁。A.15B.16C.17D.18