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A.{﹣1,0,1,2,3,4,5,6,7}
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B..{﹣1,0,1}
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C.{2,3,4}
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D.{5,6,7}
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A.{1,2,3,4,6,8}
C..{2,4}
B.{2}
D.{2,3}
A.{0,1,2,3}
C.{1,2,3}
B.{0,1,2,3,4}
D.{﹣2,﹣1,0,1,2,3}
A.{0,1,2,3}
C.{1,2}
B.{0,1,2}
D.{﹣2,﹣1,0,1,2}
A.{x|0≤x≤3}
C.{x|﹣2≤x≤4}
B.{0,1,2,3}
D.{﹣2,﹣1,0,1,2,3,4}
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2021-04-20
高中数学 | | 选择题