1.

The recommended time interval for the drainage in pipette analysis is__________

A. 1/2,1,2,4,8,15, and 30 min
B. 2,4,6,12,20 and 30 min
C. 1,8,16,24 min
D. 24,30,34,40,46 min
Answer» B. 2,4,6,12,20 and 30 min


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