1.

The distribution curves of three materials A, B and C are plotted and their balancing lines are also obtained. According to Rothfutch’s method, ______ ends of balancing lines of ______ and ______ are to be connected.

A. Same, A&B, B&C
B. Opposite, A&B, B&C
C. Same, A&C, B&C
D. Opposite, A&C, B&C
Answer» C. Same, A&C, B&C


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