在调值公式：P=P（a+aA/A+aB/B+aC／C+……）中，a的含义是（）。

[单选题]Passage2Come on-Everybody's doing it. That whispered message, half invitation and half forcing, is what most of us think of when we hear the words peer pressure. It usually leads to no good-drinking, drugs and casual sex. But in her new book Join the Club, Tina Rosenberg contends  that peer pressure can also be a positive force through what she calls the social cure, in which organizations and officials use the power of group dynamics to help individuals improve their lives and possibly the word.Rosenberg, the recipient of a Pulitzer Prize, offers a host of examples of the social cure inaction: In South Carolina, a state-sponsored antismoking program called Rage Against the Haze sets out to make cigarettes uncool . In South Africa, an HIV-prevention initiative known as loveLife recruits young people to promote safe sex among their peers.The idea seems promising, and Rosenberg is a perceptive observer. Her critique of the lameness of many pubic-health campaigns is spot-on: they fail to mobilize peer pressure for healthy habits, and they demonstrate a seriously flawed understanding of psychology."Dare to be different, please don't smoke!" pleads one billboard campaign aimed at reducing smoking among teenagers-teenagers, who desire nothing more than fitting in. Rosenberg argues convincingly that public-health advocates ought to take a page from advertisers, so skilled at applying peer pressure.But on the general effectiveness of the social cure, Rosenberg is less persuasive. Join the Club is filled with too much irrelevant detail and not enough exploration of the social and biological factors that make peer pressure so powerful. The most glaring flaw of the social cure as it's presented here is that it doesn't work very well for very long. Rage Against the Haze failed once state funding was cut. Evidence that the loveLife program produces lasting changes is limited and mixed.There's no doubt that our peer groups exert enormous influence on our behavior. An emerging body of research shows that positive health habits-as well as negative ones-spread through networks of friends via social communication. This is a subtle form of peer pressure: we unconsciously imitate the behavior we see every day.Far less certain, however, is how successfully experts and bureaucrats can select our peer groups and steer their activities in virtuous directions. It's like the teacher who breaks up the troublemakers in the back row by pairing them with better-behaved classmates. The tactic never really works. And that's the problem with a social cure engineered from the outside: in the real world, as in school, we insist on choosing our own friends.According to the first paragraph, peer pressure often emerges as_______.

[单选题]使用建设银行标准白金信用卡购机票可获赠（）万元高额航空意外险。

[单选题]幼儿期幼儿性格的典型特点不包括（　　）。

[单选题]坐骨棘间径平均是上述哪项？（　　）

[单选题]海水中含有大量的（）盐，对混凝土中钢筋腐蚀有加速作用。

[单选题]在同一种类的产品中，一组产品密切关联，有基本相同的功能和作用，以需求相同的顾客群体为目标市场，以基本相同的方式和渠道进行销售，这一产品层级被称为（）。

[单选题]韦荣菌属属于（）

[判断题]对于多路输出25Hz轨道电源，任何一路负载短路，通过负载接通和短路切除电路切断短路分路，其他各路正常供电。

[单选题]脾脏的生理功能不包括以下哪项（）

[单选题]下列各项中，不属于“无形资产”科目核算内容的有()。

[单选题]在调值公式：P=P（a+aA/A+aB/B+aC／C+……）中，a的含义是（）。

[单选题]在调值公式：P=P（a+aA/A+aB/B+aC／C+……）中，a的含义是（）。

[单选题]A+AB=（）。

[单选题]逻辑式A+AB的最简式为（）

[单选题]在布尔代数中，A+AB=（）。

[问答题]求s=a+aa+aaa+…+aaa…aaa（n个a），其中a和n的值由用户自己输入。例如，当a=3，n=4时，S=3+33+333+3333。

[单选题]For what value of a is a Φ 4 = 24?

[单选题]IRIG-B（AC）时码调制比2：1~6：1连续可调，典型调制比为（）

[问答题]编程，计算多项式Sn=a+aa+aaa+aaaa+…+aa…a（n个a），其中a是一个随机产生的1～9之间的整数；n是一个5～10之间的整数可从输入对话框中输入...

[单选题]逻辑表达式A+AB等于（）。