1.

AFTER_VACUUM_MIXING,_THE_VOLUMETRIC_SHRINKAGE_CAN_BE_RAISED_FROM_3‚ÄÖ√Ñ√∂‚ÀÖ√Ë‚ÀÖ¬®5%_TO____________%_IN_DIFFERENT_CEMENTS.?$#

A. 1-2
B. 3-5
C. 5-7
D. 6-8
Answer» D. 6-8


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