8=22,
根据题意得:x2-5x+6=2,
解得:x=-4或-1.
故答案是:-4或-1
We will be losing money this year unless that new economic plan of yours well. [ ]
A. is working
B. works
C. will be working
D. worked
工作分解结构是一种()树状结构。
A.层次化
B.并列化
C.网络化
D.无序化