1.

THE_USE_OF_VARIOUS_TYPES_OF___________IS_BECOMING_INCREASINGLY_IMPORTANT_IN_PAPER_IN_ORDER_TO_INCREASE_ITS_STRENGTH_AND_TO_INCREASE_THE_RETENTION_OF_FINES,_FILLERS,_AND_OTHER_MATERIALS.?$

A. Lignin
B. Pulpwood
C. Starch
D. Gum
Answer» D. Gum


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