方程:(x-2)(x-3)=6的解为______.
原方程变形为:x2-5x+6-6=0
即x2-5x=0
∴x(x-5)=0
∴原方程的解为:x1=0,x2=5.
Why did you get up so early ___ this morning. [ ]
A. on
B. /
C. at
D. in
感应调压器有单相和()之分。