设方程的另一根为x1,又∵x=2-3,
由根与系数关系,得x1+2-3=4,解得x1=2+3.
—This book is a little hard. ________read something easier?
—AIl right. [ ]
A. Why don't
B. Why not to
C. Why don't you
D. Why not you
装卸搬运活性指数越高,说明该存放状态下的物品越不容易进行装卸搬运作业。