A:乙醇、乙酸和乙酸乙酯能用饱和Na2CO3溶液鉴别
B:淀粉和纤维素的化学式都是(C6H10O5)n,因此它们互为同分异构体
C:分馏煤焦油可以得到苯和甲苯,说明煤中含有苯和甲苯等芳香烃
D:乙烯、苯、四氯化碳分子中所有原子都在同一平面上
阅读短文, 判断句子对“正确”错“错误”。
I'm a girl from Guangzhou. I have a pen pal. His name is John. He's an Australian boy. He's twelve years old. He studies in Guangzhou now. John is a good student. He studies hard every day. John often cooks breakfast, lunch and dinner by himself. He likes Chinese food very much. He is interested in cooking. And he's good at cooking.