问题 多项选择题

关于β内酰胺类抗生素的作用机制,叙述错误的是()

A.与细菌细胞壁中磷脂结合,使细胞壁通透性增加,致使细菌死亡

B.抑制青霉素结合蛋白(PBPs),阻止细菌细胞壁黏肽合成

C.抑制胞壁黏肽合成酶,使细菌细胞壁缺损,菌体膨胀死亡

D.抑制细菌蛋白质合成多个环节而杀菌

E.触发细菌的自溶酶活性

答案

参考答案:A, B, D

阅读理解

阅读理解。                    

                                                          Do you like music?

       If someone asks me," Do you like music?" I'm sure I will answer him or her," Of course, I do."

Because I think music is an important part of our lives.

      Different people have different ideas about music. For me I like rock music because it's so exciting.

And my favorite rock band, "Foxy Ladies", is one of the most famous rock bands in the world. I also

like pop music. My classmate Li Lan loves dance music because she enjoys dancing. My best friend,

Jane, likes jazz music. She thinks jazz is really cool.

      "I like dance music and rock very much, "says my brother, "because they are amazing. "

      But my mother thinks rock music is boring. "I like some relaxing music. " she says. That's why she

likes country music, I think.

1. Why does the writer like music?

                                                                            

2. What kind of music does the writer like?

                                                                            

3. Who likes dancing?

                                                                            

4. What does the writer's mother think of the country music?

                                                                            

5. How many people's ideas about music are talked about in this passage?

                                                                            

选择题