宽1m的木条,1.3125

2024-11-17 05:23:12
推荐回答(1个)
回答(1):

1.5+1=2.5m,1.5-1=0.5m,因而木条长在0.5m到2.5m之间.
故可选0.7m,1m,2m,共3种选择.
故选:B.