男孩，8岁，12月份发病，因发热2天、伴头痛及呕吐1天、抽搐1次入院。查体：昏睡状态

发布时间：2017-05-11 09:16 │ 来源：www.tikuol.com

题型：单项选择题 A3型题

问题：

男孩，8岁，12月份发病，因发热2天、伴头痛及呕吐1天、抽搐1次入院。查体：昏睡状态，面色苍白，躯干皮肤见散在瘀点及瘀斑，颈强直（+），克氏征及布氏征（+）。血象：WBC20×10⁹／L，中性粒细胞0．95，脑脊液化验：外观混浊，WBC1200×10⁶／L，多核0．90，糖1．96mmol／L，蛋白（+），氯化物115mmol／L。

该病例与其他脑膜炎有较大鉴别诊断意义的临床表现是（）

A.脑膜刺激征

B.流行季节和发病年龄

C.脑脊液改变

D.瘀点瘀斑

E.起病特点

考点：证券从业资格考试感染性疾病感染性疾病题库

题型：单项选择题 A3型题

若复数z₁=3+i，z₂=1-i，则z₁•z₂在复数z₁•z₂平面内对应的点位于（　　）

A．第一象限

B．第二象限

C．第三象限

D．第四象限

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题型：单项选择题 A3型题

某线圈在匀强磁场中绕垂直于磁场的转轴匀速转动，产生交变电流的图象如图所示，由图中信息可以判断（）

A．在A和C时刻线圈处于中性面位置

B．在B和D时刻穿过线圈的磁通量为零

C．从A→D时刻线圈转过的角度为

D．若从O→D时刻历时0.02 s，则在1s内交变电流的方向改变100次

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题型：单项选择题 A3型题

At the beginning of the twentieth century, North American society held, as an ideal, the Nuclear Family. This presumably perfect residential, social, and economic unit consisted of an adult male, an adult female and their minor children. This structure was thought to be stable and long lasting.
However, a few decades later, the structure of that ideal family was being altered radically even while it was being touted as the structure to be aimed for. Popular magazines bemoaned the loss of the Nuclear Family and its replacement with inferior forms.
There are a number of factors that are acting in concert to apply pressure on the Nuclear Family and generate a variety of new structures. Some of these are:
The definition of marriage has changed somewhat in that few people now consider it to last "until death do us part." The concept of monogamy (the marriage of one man and one woman) has been modified to a form now referred to as serial monogamy (the marriage of one man and one woman at a time). This reflects the increasing equality of women and men in terms of economic advantage and the recognition that many women no longer depend on men for their survival. Women are acquiring independence and have become empowered to make their own choices. With this independence, the need to form a relationship with a man becomes less important. This change embodies the concept that the marriage is temporary and can be terminated by either partner at any time. Associated with this, of course, is the relaxation of the divorce laws and the significant reduction of the shame that had one time been attached to divorce.
The economy of North America has resulted in a two-tier system of a few rich who control most of the resources and a large portion of the population who control almost none of the resources. Because of this, many couples are forced to have both partners with full-time jobs outside the home. There are unintended byproducts of the need for a double income. The most important of these is the replacement of a mother-oriented socialization of children to a "stranger-oriented" socialization system reflected in the growth of the childcare industry. Also, either partner is financially able to end the marriage without significant hardship.
The combination of these changes will in the coming decades have a profound effect on the structure of the family of North America. As a result, the family will be a fluid, constantly changing structure with variable household arrangements as the norm.

In Paragraph 4, "until death do us part" probably means remaining married______.

A．until death

B．to the particular person until death

C．to one person at a time

D．until one leaves

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题型：单项选择题 A3型题

简述光通信与电通信的区别？

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题型：单项选择题 A3型题

某物种基因组中编码蛋白质的基因有30，000个，由此推测此物种拥有蛋白质（）。

A、约30，000种

B、少于30，000，因为许多蛋白质是由多条肽链组成

C、比30，000稍多，因为有些多肽经过酶解会产生几个有不同功能的片段

D、多于30，000，因为一个基因可以编码多种蛋白质

E、难以确定，要靠实验来验证

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