Questions on 'pdf file' tag
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596
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607
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0
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1
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692
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600
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1
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593
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0
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1
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587
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1
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630
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0
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1
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636
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1
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626
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0
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1
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585
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0
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1
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601
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1
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606
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0
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1
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575
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1
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543
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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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537
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0
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1
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585
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1
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630
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0
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1
answer
522
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0
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1
answer
636
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0
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2
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586
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0
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2
answer
606
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0
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1
answer
636
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0
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2
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534
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1
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512
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2
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559
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1
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562
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0
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1
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528
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1
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543
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1
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536
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1
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556
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1
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583
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1
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562
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1
answer
540
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1
answer
562
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