107. Put the painting over there. As we know, an oil painting looks better _______.

A．in the distance

B．over a long distance

C．at a distance

D．in a distance

偏态分布资料宜用______描述其分布的离散趋势

A．全距(R)
B．标准差(s)
C．变异系数(CV)
D．四分位数间距(Q_U～Q_L)
E．方差