接种过疫苗的人，在遇到同样的生物战剂(用于战争的病原微生物或

搜题请搜索小程序“爱下问搜题”

问题选择题

接种过疫苗的人，在遇到同样的生物战剂(用于战争的病原微生物或毒素)时，仍然要再次接种疫苗，原因是[ ]

A．这些人已丧失免疫力

B．这些人体内没形成记忆细胞

C．原来的接种不成功

D．这些病原微生物突变快，变异性强

答案

答案：D

填空题

根据短文内容和首字母提示，把所缺单词补充完整，使短文前后意思通顺、完整。

In England, people don't (1) o_______ talk to each other when they travel. If you get on a bus or a train,

you can see people sitting and (2) l_______ out of the window. Other people may be reading (3) b_______ or

newspapers.

When you (4) m_______ somebody in England, you may start with talking about the weather. So when

you want to chat with somebody in England, you can say, "Nice weather for the time of the year!"

"It was a bit cold yesterday." Somebody may answer.

"But it will get a little (5) w_______ now than before." You can answer.

Talking like this, they will think, "How friendly you are!"

单项选择题

运用专业的方法和技巧消除或者减轻服务对象的困扰的过程中，社会工作者的角色是( )。

A．使能者

B．联系人

C．教育者

D．倡导者

E．治疗者