题目

细菌细胞与小麦细胞相比，细胞中没有的结构是( ) A . 没有细胞壁和没有成形的细胞核 B . 没有成形的细胞核和没有叶绿体 C . 没有细胞膜和液泡 D . 没有细胞壁和叶绿体 答案：B 补全对话 　　A：　　1　　 　　B：He lives farthest from school,　　2　　 He goes by bus．It's the best way to get to school． 　　A：How does Daming get to school? 　　B：He has the fastest journey 　　3　　 　　A：But it's the most dangerous way．And what about Lingling? 　　B：Her home is the closest to school,　　4　　 　　A：Does Dad always go to work by taxi? 　　B：Yes,it's the most expensive way,　　5　　 He sometimes takes the train,but it's the most uncomfortable way to go to work! 1．________ 2．________ 3．________ 4．________ 5．________