a,b,c,是三个非零自然数,且,那么a,b,c,按照从大到小的顺序排列应是( )
0.897化成百分数是( )A.0.897% B.89.7% C.8.97%
1.02化成百分数是( )A.102% B.1.02% C.10.2%
1.225化成百分数是 ( )
2.8里面有几个1%?( )A.2.8 B.28 C.280
1.9%化成小数是( )A.0.019 B.0.19 C.1.9