如要编程实现：“如果R1大于或等于R2，那么程序向后跳转至“LABEL1”程序段，”

请根据以下资料回答下列问题：

王四夫妇均35岁，预计退休年龄均为65岁，且长子7岁，次子2岁。家庭税后年收入20万元，其中王四15万元，其妻张翠收入5万元。家庭主要资产负债：房屋80万元(市场估值)，汽车(折旧)和其他家庭财产价值20万元，目前储蓄8万元。房贷余额50万元。家庭年生活费用开支8万元，其中王四个人生活费用年支出3万元。除前述家庭生活费用开支外，王四个人另有其他年度支出1.5万元。

王四家庭的理财目标：应急基金5万元，教育基金现值两个小孩各20万元(准备到两个孩子各17岁时使用)；养老基金(65岁时使用)现值25万元，临终与丧葬费用6万元。

收入成长率5%，通货膨胀率4%，贴现率6%。

(假设收入在期末，支出在期初发生。)

根据生命价值法测算王四的寿险保障需求是（）

A．997万元

B．744万元

C．252万元

D．267万元

既能祛风湿，又熄风定惊的药物是（）

A.威灵仙

B.白花蛇

C.桑寄生

D.蚕砂

E.秦艽

一般日常生活中的接触会感染艾滋病病毒吗？试说明艾滋病的不可传播途径。

正常思维的特征不包括

A．具体性
B．目的性
C．实际性
D．自觉性
E．逻辑性

In his book The Tipping Point, Malcolm Gladwell argues that "social epidemics" are driven in large part by the actions of a tiny minority of special individuals, often called influentials, who are unusually informed, persuasive, or well connected. The idea is intuitively compelling--we think we see it happening all the time--but it doesn’t explain how ideas actually spread.

The supposed importance of influentials derives from a plausible-sounding but largely untested theory called the "two-step flow of communication": Information flows from the media to the influentials and from them to everyone else. Marketers have embraced the two-step flow because it suggests that if they can just find and influence the influentials, those select people will do most of the work for them. The theory also seems to explain the sudden and unexpected popularity of certain looks, brands, or neighborhoods. In many such cases, a cursory search for causes finds that some small group of people was wearing, promoting or developing whatever it is before anyone else paid attention. Anecdotal evidence of this kind fits nicely with the idea that only certain special people can drive trends.

In their recent work, however, some researchers have come up with the finding that influentials have far less impact on social epidemics than is generally supposed. In fact, they don’t seem to be required at all.

The researchers’ argument stems from a simple observation about social influence, with the exception of a few celebrities like Oprah Winfrey--whose outside presence is primarily a function of media, not interpersonal influence--even the most influential members of a population simply don’t interact with that many others. Yet it is precisely these non-celebrity influentials who, according to the two-step-flow theory, are supposed to drive social epidemics, by influencing their friends and colleagues directly. For a social epidemic to occur, however, each person so affected must then influence his or her own acquaintances, who must in turn influence theirs, and so on; and just how many others pay attention to each of these people has little to do with the initial influential. If people in the network just two degrees removed from the initial influential prove resistant, for example, the cascade of change won’t propagate very far or affect many people.

Building on the basic truth about interpersonal influence, the researchers studied the dynamics of populations, manipulating a number of variables relating to people’s ability to influence others and their tendency to be influenced.

What is the essential element in the dynamics of social influence（）

A. The eagerness to be accepted

B. The impulse to influence others

C. The readiness to be influenced

D. The inclination to rely on others