题目

病毒、蓝藻和酵母菌都具有的物质或结构是（）      A．细胞壁          B． 细胞质                  C．   细胞膜    D． 遗传物质 答案：DI really don't know 　　　　　　　 I had my money stolen. 　 A. when was it that　　　　　　 B. that it was when C. where it was that D. it was where that