四则混合运算法则是什么

简介：Last year, with the support of the ministers, Yuan Jixian, who had been exiled to Guizhou due to the fall of Xiangyang, was re-appointed by the imperial court. Originally, the people in Donglin wanted to arrange him to serve as the salt transport envoy for the Lianghuai Salt Transport. However, he was usurped by Ding Kuichu, and Yuan Jixian finally only took one right-du censor to the post of farming in Baoding.