Question

-xy²z³的系數(shù)及次數(shù)分別是

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A．系數(shù)是0，次數(shù)是5 ；
B．系數(shù)是1，次數(shù)是6；
C．系數(shù)是-1，次數(shù)是5；
D．系數(shù)是-1，次數(shù)是6；

Answer 1

D