0.8×0.9≈0.72______．
0.8×0.9=0.72，0.72是0.8与0.9乘积的准确值．所以要用等于号，不能用约等于号．
故答案为：×．
Who is ______ that is _______ for the terrible mistake?
A．he; to blame
B．it; to blame
C．he; to be blamed
D．it; to be blamed
RR
