方程x(x-3)=0的解为______.
x(x-3)=0,
可得x=0或x-3=0,
解得:x1=0,x2=3.
故答案为:x1=0,x2=3
—You seem to have lost your way. ______?
—I’m looking for the nearest post office.
A.What for
B.Need help
C.Where to
D.What if
水田为什么要进行秸秆还田?还田最好方法是什么?