6÷34-12×13
=6×43-4
=8-4
=4．
There isn't _____in today's newspaper． [ ]
A. something new
B. new anything
C. new anything
D. anything new
“专家评判方法”中，当判断矩阵的阶数较高时，要想通过判断矩阵得到的权数达到一致性要求，则只有取随机一致性比率C.R小于( )时。
A．0.1
B．0.3
C．0.7
D．0.9
