问题 单项选择题

消毒并不是为了

A.将病原微生物消灭于外环境中

B.切断传播途径

C.阻断传染病播散

D.杀灭所有微生物

E.控制医院感染

答案

参考答案:D

解析:A、B、c、E项均正确。D项消毒是指杀死物体上的病原微生物,并非杀灭所有微生物。

改错题

修改病句。 

1.我认真地完成了各科作业和语文作业。

                                                                                                             

2.树上结满了许许多多的苹果。  

                                                                                                             

3.随地吐痰是一种不文明的人。 

                                                                                                             

4.同学们都很爱惜今天的幸福生活。 

                                                                                                             

5.通过这次活动更加团结了。 

                                                                                                            

6.他记录并听取了发言。 

                                                                                                            

7.鞋厂增加了产量和质量。

                                                                                                            

单项选择题