晚上在路灯下散步,当走向路灯时,人的影子越来越长. .(判断对错)
12: =0.375=45÷ = :56=.
15:90= %==6÷ = :12.
=:0.5= ÷ .
:8===9÷ =27: .
=== ÷5=.