从,,,,0.8,,这七个数中选出三个数,分别记为A,B,C.若选出的三个数使得最大,则此最大值是 .(用分数表示)
= :32=0.875=7÷ = %.
30: === 成= %
:160=18÷ = %= =0.45.
1: ==25%
=8: = %