题目

下列有关实验现象的描述错误的是（） A . 酚酞试液遇到盐酸变红 B . 石灰水滴加硫酸铜溶液产生蓝色沉淀 C . 硝酸铵溶于水使溶液温度降低，浓硫酸遇水放热 D . 铁丝与稀盐酸反应，冒气泡，溶液变为浅绿色 答案：A----We're going for a picnic next Sunday, and I'd like you to join us. ---_______！I have to see my grandmother. She has been ill for two weeks. A．What a pity        B．Good luck         C．That’s all right     D．Go ahead