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问题 单项选择题

关于社会政策的对象，下列说法不正确的是( )。

A．社会政策对象是社会政策的接受者
B．社会政策对象的被动性是绝对的
C．低保差额补助是社会政策对象差异性的表现
D．青少年作为社会政策对象是与未成年人保护或预防未成年人犯罪连在一起的

答案

参考答案：B

解析： B项，社会政策对象是一定政治产品的消费者。在许多情况下，由于产品的原因或者消费者自身的原因，消费者对某些政治产品是没有选择的，只能逆来顺受，表现出一定的被动性。然而，这种被动性是相对的，消费者也可以依据自己作为公民的权利，对某些政治产品提出自己的意见，间接地参与社会政策过程。

选择题

导电塑料的主要成分是聚乙炔，在聚乙炔中掺入某些盐，塑料就有了导电性。通常塑料是电的绝缘体，导电塑料的发现，大大激发了科学家的探索兴趣，继美国、日本之后，俄罗斯、德国也研究出了导电塑料。德国化学家博伊尔勒用导电塑料制成二极管后预言：导电塑料将取代硅进入家电世界。下列有关导电塑料的说法正确的是（   ）

A．导电塑料的结构式为

B．导电塑料有可能成为输电线路铝的替代品

C．导电塑料在家用电器中只能用作导线

D．导电塑料制品不易被氧化剂氧化
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单项选择题

Questions 91 — 100 are based on the following passage. (15 points)Electronic mail has become an extremely important and popular means of communication.The convenience and efficiency of electronic mail are threatened by the extremely rapid growth in the volume of unsolicited commercial electronic mail. Unsolicited commercial electronic mail is currently estimated to account for over half of all electronic mail traffic, up from an estimated 7 percent in 2001, and the volume continues to rise. Most of these messages are fraudulent or deceptive in one or more respects.The receipt of unsolicited commercial electronic mail may result in costs to recipients who cannot refuse to accept such mail and who incur costs for the storage of such mail, or for the time spent accessing, reviewing, and discarding such mail, or for both. The receipt of a large number of unwanted messages also decreases the convenience of electronic mail and creates a risk that wanted electronic mail messages, both commercial and noncommercial, will be lost, overlooked, or discarded amidst the larger volume of unwanted messages, thus reducing the reliability and usefulness of electronic mail to the recipient. Some commercial electronic mail contains material that many recipients may consider vulgar or pornographic in nature.The growth in unsolicited commercial electronic mail imposes significant monetary costs on providers of Internet access services, businesses, and educational and nonprofit institutions that carry and receive such mail, as there is a finite volume of mail that such providers, businesses, and institutions can handle without further investment in infrastructure. Many senders of unsolicited commercial electronic mail purposefully disguise the source of such mail.Many senders of unsolicited commercial electronic mail purposefully include misleading information in the messages’’ subject lines in order to induce the recipients to view the messages. While some senders of commercial electronic mail messages provide simple and reliable ways for recipients to reject (or ’’opt-out’’ of) receipt of commercial electronic mail from such senders in the future, other senders provide no such ’’opt-out’’ mechanism, or refuse to honor the requests of recipients not to receive electronic mail from such senders in the future, or both.Many senders of bulk unsolicited commercial electronic mail use computer programs to gather large numbers of electronic mail addresses on an automated basis from Internet websites or online services where users must post their addresses in order to make full use of the website or service.The problems associated with the rapid growth and abuse of unsolicited commercial electronic mail cannot be solved by the government alone. The development and adoption of technological approaches and the pursuit of cooperative efforts with other countries will be necessary as well.

What does unwanted e-mail messages do to the providers of the Internet services

A．Raising their cost.

B．Raising the Internet speed.

C．Improving their business.

D．Attracting investment.
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