急急急,这道题怎么做?谢谢大家!请大家帮帮忙,20分钟以内出答案好吗?我急用。谢谢大家了!!! 1

2025-02-13 16:11:45
推荐回答(1个)
回答1:

(0.9-0.42)+(0.5-0.42)+0.42=0.98
(0.9-0.42)+(0.5-0.42)=0.56