在lac操纵子中起调控作用的是( )。 A.lacⅠ基因 B.lacZ基因

题型:多项选择题

问题:

在lac操纵子中起调控作用的是( )。

A.lac基因
B.lacZ基因
C.lacO序列
D.lacP序列

考点:普通考研07理学分子生物学
题型:多项选择题

根据合同法规定租赁物在租赁期间发生所有权变动,不影响租赁合同的效力。合同法理论称此现象为()。

A.买卖不破租赁

B.物权的追及效力

C.特定物的先押后租

D.承租人的优先权

题型:多项选择题

阅读理解。

     Do you know how it is when you see someone yawn and you start yawning too? Or how hard it is to

be among people laughing and not laugh yourself? Well, apparently it's because we have mirror neurons (神经元)in our brains.

     Put simply, the existence of mirror neurons suggests that every time we see someone else do something, our brains imitate (模仿) it, whether or not we actually perform the same action. This explains a great

deal about how we learn to smile, talk, walk, dance or play sports. But the idea goes further: mirror

neurons not only appear to explain physical actions,they also tell us that there is a biological basis for the

way we understand other people.

     Mirror neurons can undoubtedly be found all over our brains,but especially in the areas which relate

to our ability to use languages,and to understand how other people feel. Researchers have found that

mirror neurons relate strongly to language. A group of researchers discovered that if they gave people

sentences to listen to (for example: "The hand took hold of the ball"), the same mirror neurons were

triggered as when the action was actually performed (in this example, actually taking hold of a ball).

     Any problems with mirror neurons may well result in problems with behavior. Much research suggests

that people with social and behavioral problems have mirror neurons which are not fully functioning.

However, it is not yet known exactly how these discoveries might help find treatments for social

disorders.

     Research into mirror neurons seems to provide us with ever more information concerning how

humans behave and interact(互动).Indeed, it may turn out to be the equivalent (相等物) for

neuroscience of what Einstein's theory of relativity was for physics. And the next time you feel the urge to

cough in the cinema when someone else does-well, perhaps you'll understand why.

1. Mirror neurons can explain _____.

A. why we cry when we are hurt

B. why we cough when we suffer from a cold

C. why we smile when we see someone else smile

D. why we yawn when we see someone else stay up lat

2.The underlined word "triggered" in the third paragraph probably means "____".

A. set off

B. cut off

C. built up

D. broken up

3.We can learn from the passage that mirror neurons _____.

A. relate to human behavior and interaction

B. control human physical actions and feelings

C. result in bad behavior and social disorders

D. determine our knowledge and language abilities

4.What is the passage mainly about?

A.Ways to find mirror neurons.

B.Problems of mirror neurons.

C.Existence of mirror neurons.

D.Functions of mirror neurons.

题型:多项选择题

某女,26岁,生育史:0-0-0-0,停经11周, * * 少量流血10天,3天前 * * 流血增多,下腹阵痛,伴有胎盘组织排出。昨起发热,今体温38.5℃,血压75/60mmHg,心率122次/分,神萎。 * * 检查:外阴有多量流血,宫口开,容1指,子宫口处可触及胎盘组织,子宫大小与妊娠月份相符,压痛(++),附件稍增厚伴有压痛,腹软,无压痛及反跳痛;血红蛋白70g/L,白细胞16×10/L,中性粒细胞0.90。

临床诊断是()

A.不完全性流产伴感染

B.难免流产伴感染

C.稽留流产伴感染

D.难免流产

E.完全性流产伴感染

题型:多项选择题

Pentium4/1.7G中的1.7G表示______。

A.CPU的运算速度为1.7GMIPS

B.CPU为Pentium4的1.7GB系列

C.CPU的时钟主频为1.7GHz

D.CPU与内存间的数据交换速率是1.TGB/S

题型:多项选择题

据朝中社12月9日报道,朝鲜近日隆重表彰了在朝鲜版歌剧《红楼梦》创作中做出突出贡献的工作人员和艺术家。朝鲜根据中国古典文学名著《红楼梦》排演歌剧,表明()

A.中 * * 的传统文化都属于先进文化

B.源远流长的中华文化有着巨大的包容性

C.不同民族文化在交流中实现共享和发展

D.中华文化走向世界有利于消除文化差异

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