下列哪些选项不属于C2C电子商务的应用模式（）。 A.网上拍卖 B.网上拍买 C.电

房地产投资中与时间和时机选择相关的项目风险属于( )。

A．系统风险

B．资本价值风险

C．个别风险

D．比较风险

恒电位仪的“测量参比”与数字电压表的（）连接。

A.正极

B.负极

C.零位

D.中线

The appeal of advertising to buying motives can have both negative and positive effects.

Consumers may be convinced to buy a product of poor quality or high price because of an advertisement. For example, some advertisers have appealed to people’s desire for better fuel economy for their cars by advertising automotive products that improve gasoline mileage. Some of the products work. Others are worthless and a waste of consumers’ money.

Sometimes advertising is intentionally misleading. A few years ago a brand of bread was offered to turned out that the bread was not dietetic (适合节食的), but just regular bread. There were fewer calories because it was sliced very thin, but there were the same number of calories in every loaf.

On the positive side, emotional appeals may respond to a consumer’s real concerns. Consider fire insurance. Fire insurance maybe sold by appealing to fear of loss. But fear of loss is the real reason for fire insurance. The security of knowing that property is protected by insurance makes the purchase of fire insurance a worthwhile investment for most people. If consumers consider the quality of the insurance plans as well as the message in the ads, they will benefit from the advertising.

Each consumer must evaluate her or his own situation. Are the benefits of the product important enough to justify buying it Advertising is intended to appeal to consumers, but it does not force them to buy the product. Consumers still control the final buying decision.

The passage is mainly about ().

A. how to make a wise buying decision

B. ways to protect the interests of the consumer

C. the positive and negative aspects of advertising

D. the function of advertisements in promoting sales

施工单位有（）行为的，责令限期改正；逾期未改正的，责令停业整顿，并处5万元以上10万元以下的罚款；造成重大安全事故，构成犯罪的，对直接责任人员，依照刑法有关规定追究刑事责任。

A.施工前未对有关安全施工的技术要求作出详细说明

B.未根据不同施工阶段和周围环境及季节、气候的变化，在施工现场采取相应的安全施工措施，或者在城市市区内的建设工程的施工现场未实行封闭围挡

C.在尚未竣工的建筑物内设置员工集体宿舍

D.施工现场临时搭建的建筑物不符合安全使用要求

E.虚报企业资质

下列（）不可能成为《反不正当竞争法》中规定的经营者。

A.法人

B.个人

C.医院

D.学校