老猫和小猫一共钓了29条鱼,老猫钓了20条,小猫钓了多少条?)C7|2p9I5H
算式:提示1\2Y-|0l'@2g(E9_)C7|2p9I5H
答:小猫钓了)c)o/S6F1_条。)C7|2p9I5H