36x2-25=0
x2=2536，
解得：x=±56．
把一根192厘米长的木条锯成16厘米长的小段，一共要锯多少次？
Though there are some differences in American education and Chinese education, both systems
are ______ excellent graduates. [ ]
A. turning away
B. turning off
C. turning in
D. turning out
