在“余宿尚方术,请事斯语”中,“事”的意义是:
A.运用
B.奉行
C.做到
D.行事
E.研究
参考答案:B
若ax=3,ay=5,求:
(1)ax-y的值;
(2)a3x-2y的值.
The general ordered that the thief____.
A.be punished
B.would punish
C.would be punished
D.should punish