题目

下面动物中是恒温动物的是（）A．鲫鱼B．鲸鱼C．鲍鱼D．甲鱼 答案：B解析:略---Could you describe_____?---Yes. I was calling and didn’t notice the light turned red.A. why did the accident happenB. when did the accident happenC. how the accident happenedD. where the accident happened