(一) 鼠的天敌是猫。因此,它总想摆脱猫的威胁。有则这样的寓言:一群老鼠凑在一起开会,讨论如何防止被猫捕食的问题。大家议论纷纷,声嘶力竭,无以为计。许久,一只大老鼠想出一计:给猫脖子上挂个铃铛,只要猫一出动,铃铛报警,就可以免遭被猫捕食之灾。鼠辈门听罢,皆大欢喜。可是,谁去完成这个任务呢?大老鼠说自己年老体弱,行动不便,最好由小 (A) the natural enemy of the cat is a cat. Therefore, it always wants to get rid of the cat’s threat. There is such a parable: a group of mice get together to discuss how to prevent cats prey problem. Everyone talked about, shout hoarse, no idea. Long time, a big mouse came up with a plan: to hang a bells on cat neck, as long as a cat out of action, bells alarm, you can be protected from being cat predation. Rodeo heard, are happy. However, who to complete this task? Big mouse said he was frail, mobility, preferably from small