把2.8:0.24化成最简单的整数比是4w5K5O;C+L;x9T4u'q)s:`'n2L: 2e)E+J0k/C-?)g5`1q1^(e*M,比值是7k.l5y2w6O8x:z4J9{。7u,S;F2l'j1M*`1v