要使是真分数,是假分数,a是应该( )
58个0.01用百分数表示为( )A.5.8% B.58% C.0.58%
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