[单项选择题] Good harvest this year has made it possible for us to supply walnuts ______ last year"s prices.
A.at
B.in
C.against
D.on
正确答案:A

[单项选择题] Good harvest this year has made it possible for us to supply walnuts ______ last year"s prices.
A.at
B.in
C.against
D.on
正确答案:A