供给和需求是市场经济内在关系的两个基本方面,是( )的关系,二者你离不开我、我离不开你,相互依存、互为条件。
A.互相统一
B.相辅相成
C.对立统一
D.辩证统一
某医师为了评价某疫苗的效果,将人群随机分成两组,一组为接种组,给予疫苗接种;另一组为对照组,不接种疫苗。经过一个流行期后,对两组发病情况进行比较,这种方法属于
以下是钟老师班主任日志的一段话:一个月了,尽管我对某某给予了更
多的关心与鼓励。但依然看不到好转的迹象,是方法不对还是……?看来,我得再找他的父母和原班主任交流,再深入一点,再调整策略。这表明钟老师( )。
中国共产党是在特定的社会历史条件下成立的,具有自己的历史特点。以下不属于中国共产党创建的历史特点的是( )。
一开始就是一个以马克思列宁主义理论为基础的党
党的阶级基础工人阶级具有坚定的革命性,没有社会改良主义的基础
党内出身于小资产阶级的党员占有相当大的数量
党成立时就提出了反帝反封建的民主革命的纲领,指出了明确的斗争目标
下面情况中,( )是随机化的一个实例。
请阅读 Passage 2,完成第 26~30小题 。
Passage 2
An article in Scientific America haspointed out that empirical research says that, actually, you think you 're morebeautiful than you are. We have a deep-seated need to feel good about ourselvesand we naturally employ a number of self-enhancing strategies to achieve this.Social psychologists have amassed oceans of research into what they callthe "above average effect ,"or " illusory superiority,"and shown that, for example, 70% of us rate ourselves as above average inleadership, 93% in driving and 85% at getting on well with others-all obviouslystatistical impossibilities.
We rose-tint our memories and put ourselvesinto self-affirming situations. We become defensive when criticized, and applynegative stereotypes to others to boost our own esteem. We stalk aroundthinking we're hot stuff.
Psychologistand behavioral scientist Nicholas Epley oversaw a key study into self-enhancementand attractiveness. Rather than have people simply rate their beauty comparedwith others, he asked them to identify an original photograph of themselvesfrom a lineup including versions that had been altered to appear more and lessattractive. Visual recognition, reads the study, is "an automatic psychological process,occurring rapidly and intuitively with little or no apparent consciousdeliberation." If the subjects quickly chose a falsely flatteringimage-which most did they genuinely believed it was really how they looked.
Epley found no significant genderdifference in responses. Nor was there any evidence that those who self-enhancedthe, most (that is, the participants who thought the most positively doctored pictureswere real) were doing so to make up for profound insecurities. In fact, thosewho thought that the images higher up the attractiveness scale were real directlycorresponded with those who showed othermarkers for having higher self-esteem. "I don't think the findings that wehave are any evidence of personal delusion," says Epley."It's a reflection simply ofpeople generally thinking well of themselves. " If you are depressed, youwon ' t be self-enhancing.
Knowingthe results of Epley's study, it makes sense that many people hate photographsof themselves viscerally -on one level, they don't even recognize theperson in the picture as themselves. Facebook, therefore, is a self-enhancer 's paradise, where people can share only the most flattering photos, the cream of their wit, style, beauty, intellect and lifestyles. It's not that people's profiles are dishonest,says Catalina Toma of Wisconsin-Madison University, "but they portray an idealized versionof themselves."
It can be inferred that Facebook is a self-、enhancer'S paradise because people can _____.