预防性使用抗菌药的目的是什么?

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问题:

预防性使用抗菌药的目的是什么?

考点:院感知识医院感染医院感染题库
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Have you ever heard the saying “If you want a friend, be one”? If you want to make friends with others, you should be friendly to them at first.

Here is how one ① /new teacher made friends/ with the pupils in her class on the first day of school. As the bell rang, the teacher smiled at each pupil. Then she said in a quiet voice, “Good morning. How nice it is to have all of you in my class this year. I’d like to know each of you. I am sure we will enjoy working together.” ② Her voice was sweet and her look was friendly, so everyone felt happy.

She told the pupils her name and wrote it on the blackboard. Then she told them some of the things she liked to do and she was hoping to do with them during the year. ③ Then she said to the boys and girls, “Now you know my name and the things I like and I want to know your names and the things you like. ”

Could you make friends by doing the same as this teacher did?

One way of getting to know girls and boys in your class is to find out more about them. ④People often make friends with those who have the same hobbies. You play the same games and go on journeys together. It is a good way to make friends.

小题1:根据①处的注音写出英语单词。

小题2:根据②处的划线句子在下面句子中的每个空白处填入一个适当的词(首字母已给出)。

Everyone felt happy b_______ o________ her sweet voice and her friendly look.

小题3:1)在③处的划线部分中找出哪个词的最后一个音可以失去爆破。

2)在③处的划线部分中找出两个可以连读的词。

小题4:将④处的划线句子翻译成汉语。

小题5:从文中找出一句能概括本文主旨大意的句子。

题型:问答题 简答题

某烃A的相对分子质量为84。回答下列问题:

(1)下列物质与A以任意比例混合,若总物质的量一定,充分燃烧消耗氧气的量不相等的是(填序号)____ ____。

a.C7H12O2      b.C6H14         c.C6H14O       d.C7H14O3

(2)若烃A为链烃,与HBr加成后只能得到一种产物,且该烃的一氯代物只有一种。

①A的结构简式为________________;

②链烃A与Br2的CCl4溶液反应生成B,B与NaOH的醇溶液共热可得到D,D分子中无溴原子。请写出由B制备D的化学方程式:__                   ________________;

③B与足量NaOH水溶液完全反应,生成有机物E,该反应的化学方程式:____________________________;E与乙二醇的关系是_______________。

(3)若核磁共振氢谱显示链烃A有三组不同的峰,峰面积比为3:2:1,则A的名称为________________。(4)若A不能使溴水褪色,且其一氯代物只有一种,则A的结构简式为           

题型:问答题 简答题

在一个小型会议室里,某公司正在对前来应聘并通过初选的大学毕业生小王进行面试。考官要求小王谈一谈自己的一次失败的经历,小王感到难以回答。

除了要掌握回答问题的技巧外,毕业生参加面试时,还应掌握哪些基本技巧?

题型:问答题 简答题

市场理论认为,厂商利润的大小取决于()

A.总成本

B.市场中的竞争结果

C.总收益

D.总收益与总成本的差额

题型:问答题 简答题

耳目的建立和使用,应当严格保守秘密,坚持()。

A、个别吸收

B、单线领导

C、专人联系

D、定期教育

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