求各位高手们解答此题!!!!!!!!!!!!!!!!!!!!!

2024-12-21 12:51:43
推荐回答(3个)
回答1:

1.
(28-14)/28*100%=50%
比中国少50%
2.
(28+16+15-14-17-26)/(14+17+26)*100%=3.51%
比德国多3.51%

回答2:

1. (28-14)/28=0.5=1/2

2. (28+16+15-14-17-26)/(14+17+26)=2/57

回答3:

解:(28-14)/28=1/2;
【(28+16+15)-(14+17+26)】/(14+17+26)=2/57