Her mother didn’t tell her _______ then.

A．where is the MH370 flight

B．where the MH370 flight is

C．where was the MH370 flight

D．where the MH370 flight was

将市场预测分为定性预测和定量预测，是按( )的不同划分的。

A．预测范围
B．预测期限
C．预测性质
D．预测商品的综合程度