设NA为阿伏加德罗常数的值,下列说法中正确的是 A.62 g Na2O溶液于水后

题型:选择题

问题:

设NA为阿伏加德罗常数的值,下列说法中正确的是

A.62 g Na2O溶液于水后所得溶液中含有的O2数为NA

B.标准状况下,6.72L NO2与水充分反应转移的电子数目为0.1NA

C.常温常压下,16g甲烷(12C1H4)所含的中子数为10NA

D.常温常压下,14g由N2和CO组成的混合气体含有的原子数目为NA

考点:物质的量
题型:选择题

CCTV-7的“人与自然”栏目常播出右图景观图, 据此回答下列问题。

小题1:该景观分布在下列区域中的          

A.欧洲西部

B.拉丁美洲

C.大洋洲

D.撒哈拉以南非洲小题2:该景观属于    

A.热带雨林景观

B.热带草原景观

C.热带沙漠景观

D.温带草原景观

题型:选择题

仿照例句,用画线词写句子。     

1.除了看灯,人们会吃元宵。

______________________________________________________________________________

2.我说,不要纸糊的,透亮的。

______________________________________________________________________________

3.有名的老铺都要挂出几百盏灯来,有的是玻璃的,有的是牛角的,有的是纱灯,有的是冰灯,还有用麦苗做成一两条碧绿的长龙……

______________________________________________________________________________

______________________________________________________________________________

题型:选择题

女性,25岁。多关节肿痛1年来诊,包括双腕、双手指间关节、掌指关节、双膝关节,伴晨僵2小时,查体见双手近端指间关节梭形肿胀,双腕关节肿胀。

为进一步与系统性红斑狼疮区别,最有意义的检查是()

A.补体检测

B.抗核抗体、抗ENA抗体谱

C.免疫球蛋白检测

D.抗心磷脂抗体

E.胸片

题型:选择题

下列不是保险经纪人的特点的是( )。

A.保险经纪人作为被保险人的代表,独立承担法律责任
B.保险经纪人提供的服务专业性强
C.保险经纪人业务贯穿保险经营的始终
D.如果因为保险经纪机构的疏忽致使被保险人的利益受到损害,保险经纪机构要承担法律责任

题型:选择题

(A)

Next time a customer comes to your office, offer him a cup of coffee. And when you’re doing your holiday shopping online, make sure you’re holding a large glass of iced tea. The physical sensation of warmth encourages emotional warmth, while a cold drink in hand prevents you from making unwise decisions-those are the practical lesson being drawn from recent research by psychologist John A. Bargh.

Psychologists have known that one person’ s perception of another’ s "warmth" is a powerful determiner in social relationships. Judging someone to be either "warm" or "cold" is a primary consideration, even trumping evidence that a "cold" person may be more capable. Much of this is rooted in very early childhood experiences, Bargh argues, when babies’ conceptual sense of the world around them is shaped by physical sensations, particularly warmth and coldness. Classic studies by Harry Harlow, published in 1958, showed monkeys preferred to stay close to a cloth "mother" rather than one made of wire, even when the wire "mother" carried a food bottle. Harlow’ s work and later studies have led psychologists to stress the need for warm physical contact from caregivers to help young children grow into healthy adults with normal social skills.

Feelings of "warmth" and "coldness" in social judgments appear to be universal. Although no worldwide study has been done, Bargh says that describing people as "warm" or "cold" is common to many cultures, and studies have found those perceptions influence judgment in dozens of countries.

To test the relationship between physical and psychological warmth, Bargh conducted an experiment which involved 41 college students. A research assistant who was unaware of the study’s hypotheses, handed the students either a hot cup of coffee, or a cold drink, to hold while the researcher filled out a short information form: The drink was then handed back. After that, the students were asked to rate the personality of "Person A" based on a particular description. Those who had briefly held the warm drink regarded Person A as warmer than those who had held the iced drink.

"We are grounded in our physical experiences even when we think abstractly." says Bargh.

The author mentions Harlow’s experiment to show that().

A. adults should develop social skills

B. babies need warm physical contact

C. caregivers should be healthy adults

D. monkeys have social relationships

更多题库