Questions on 'pdf file' tag
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699
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701
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0
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790
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1
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704
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0
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1
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673
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0
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1
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667
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0
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1
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744
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0
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1
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714
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0
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1
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732
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0
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1
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692
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0
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1
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695
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1
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684
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0
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1
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658
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0
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1
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624
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0
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1
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699
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0
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1
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614
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0
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1
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681
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0
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1
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722
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0
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1
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594
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0
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1
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729
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0
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2
answer
694
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0
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2
answer
733
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0
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1
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723
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0
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2
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628
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0
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1
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597
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0
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2
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636
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1
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656
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0
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1
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630
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1
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622
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1
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627
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1
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638
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1
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685
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1
answer
644
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1
answer
622
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1
answer
648
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