题目

假如你是高三学生李华，请根据下面四幅图的先后顺序，写一篇英文周记，记录你用扎染给奶奶制作一条围巾，并送给她当作生日礼物的过程。参考词汇：扎染tie-dye 答案：Last Monday, while checking the calendar, I realized my grandmother's birthday was approaching. I determined to send a special gift to my grandma this year. Ideas had been flashing through my mind and hardly could I make a perfect decision. I was racking my brains for a good idea when the chemistry class enlightened me. In the chemistry class our teacher taught us the technique of tie-dye on a whi下列说法正确的是（ ）A．含碳的化合物一定都是有机物B．能与稀盐酸反应放出气体的物质一定是碳酸盐C．升高温度一定能使饱和溶液转化为不饱和溶液D．置换反应一定有单质生成