The pair of jeans looks nice _____________Sandy because she looks very nice ________blue.

A．on, in

B．in, on

C．for, on

D．to, in

若两个性质判断主谓项素材相同，但主谓项周延情况不相同，则这两个命题具有（）关系。

A.反对

B.矛盾

C.下反对

D.差等