A:60x−60(1+25%)x=30
B:60(1+25%)x−60x=30
C:60×(1+25%)x−60x=30
D:60x−60×(1+25%)x=30
0.78+2.2=
5﹣0.08=
3.25+0.75=
0.4×0.2÷0.4×0.2=
6.3×0.01=
4×0.37×0.25=
1.6×0.25=
2.3+7=
下列关于香港和澳门的叙述,正确的是 ( )