1岁小儿未接种过卡介苗,PPD阳性表示() A.近2~3周感染结核 B.体内已有免疫

题型:单项选择题

问题:

1岁小儿未接种过卡介苗,PPD阳性表示()

A.近2~3周感染结核

B.体内已有免疫力,不会再感染结核

C.体内有活动结核

D.对结核无免疫力,需立即接种卡介苗

E.受过结核感染,不一定有活动

考点:结核病学(医学高级)结核病学(医学高级)题库
题型:单项选择题

          Anne and Joseph are talking about an interesting question. Why do some people change their names? There can be many reasons. Hanna changed her name to Anne because she thought it would be easier for people to remember. On the other hand, Joseph is thinking about changing his name to an unusual one because he wants to be different.

         People have a lot of reasons for changing their names. Film stars, singers, sportsmen and some other famous people often change their names because they want the names that are not ordinary, or that have special sound.

         Some people have another reason for changing their names. They have moved to a new country and want to use a name that is usual there. For example, Li Kaiming changed his name to Ken Lee when he moved to the United States. He uses the name Ken at school. But when staying with his family and Chinese friends, he uses Li Kaiming. For some people, using different names makes life easier in their new country.

         In many countries, a woman changes her family names to her husband's after she gets married. But today, many women are keeping their own family names and not using their husbands'

1. Hanna changed her name to Anne because “Anne” _______.

A. makes her different

B. is easier for people to remember

C. is more unusual than “Hanna”

D. makes her prettier

2. Famous people want their new names to _______.  

A. have special sound

B. be ordinary

C. have no meaning

D. be unknown

3. Li Kaiming uses his new name when he _______.   

A. stays with his family

B. is at school

C. is among Chinese friends

D. comes back to China 

4. The underlined words “gets married” mean _______. 

A. 升官

B. 就业  

C. 结婚  

D. 生育

5. The passage mainly tells us _______.

A. different people have different names

B. what names mean

C. only film stars and sportsmen have two names

D. why some people change their names  

题型:单项选择题

一种半导体材料称为“霍尔材料”,用它制成的元件称为“霍尔元件”,这种材料有可定向移动的电荷,称为“载流子”,每个载流子的电荷量大小为1元电荷,即q=1.6×10-19C,霍尔元件在自动检测、控制领域得到广泛应用,如录像机中用来测量录像磁鼓的转速、电梯中用来检测电梯门是否关闭以自动控制升降电动机的电源的通断等.

在一次实验中,一块霍尔材料制成的薄片宽ab=1.0×10-2m、长bc=4.0×10-2m、厚h=1.0×10-3m,水平放置在竖直向上的磁感强度B=2.0T的匀强磁场中,bc方向通有I=3.0A的电流,如图所示,由于磁场的作用,稳定后,在沿宽度方向上产生1.0×10-5V的横向电压.

(1)假定载流子是电子,a、b两端中哪端电势较高?

(2)薄板中形成电流I的载流子定向运动的速率多大?

(3)这块霍尔材料中单位体积内的载流子个数为多少?

题型:单项选择题

乙胺丁醇的不良反应是

A.周围神经炎和肝脏损害
B.肝脏损害和致畸胎作用
C.视神经炎和肝损害
D.肝肌损害和关节痛
E.肾功能损害

题型:单项选择题

排爆组在对安检现场发现的爆炸装置进行处置时,首先应该先()

A.转移

B.判断

C.拆卸

D.以上都不是

题型:单项选择题

营业终了柜员扎账单后的会计凭证需按下列哪个顺序要求进行整理()

A、按照柜员现金科目日结单、现金借/贷、转账借/贷、复式凭证借/贷、表外借/贷、其他类型的顺序分类排列。

B、按照柜员现金科目日结单、转账借/贷、现金借/贷、复式凭证借/贷、表外借/贷、其他类型的顺序分类排列。

C、按照柜员现金科目日结单、复式凭证借/贷、现金借/贷、转账借/贷、表外借/贷、其他类型的顺序分类排列。

D、按照柜员现金科目日结单、现金借/贷、转账借/贷、表外借/贷、复式凭证借/贷、其他类型的顺序分类排列。

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