Questions on 'pdf file' tag
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607
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1
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611
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0
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1
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697
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0
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1
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605
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0
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1
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597
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0
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1
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589
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0
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1
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637
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0
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1
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644
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0
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1
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631
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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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604
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0
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1
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608
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0
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1
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580
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0
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1
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547
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0
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1
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612
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0
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1
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540
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0
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1
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595
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0
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1
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636
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0
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1
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524
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0
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1
answer
642
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0
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2
answer
596
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0
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2
answer
609
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0
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1
answer
640
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0
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2
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537
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0
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1
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514
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0
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2
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562
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1
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565
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0
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1
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535
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1
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550
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1
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542
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0
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1
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559
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1
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588
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0
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1
answer
569
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1
answer
545
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0
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1
answer
570
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