河豚鱼中毒类型是() A.肝肾损害型 B.神经精神型 C.溶血型 D.胃肠毒型 E.

题型:单项选择题 B1型题

问题:

河豚鱼中毒类型是()

A.肝肾损害型

B.神经精神型

C.溶血型

D.胃肠毒型

E.皮炎型

考点:公卫执业助理医师公卫执业助理医师(第二单元)模拟试题八
题型:单项选择题 B1型题

家兔是植食性动物,其区别于肉食性哺乳动物的最大特点是 [ ]

A.盲肠发达

B.体温恒定

C.体表被毛

D.大脑发达

题型:单项选择题 B1型题

关于软件生命周期中花费阶段的描述,下列()描述是正确的。

A.软件生命周期中所花费最多的阶段是详细设计。 

B.软件生命周期中所花费最多的阶段是软件测试。 

C.软件生命周期中所花费最多的阶段是软件编码。 

D.软件生命周期中所花费最多的阶段是软件维护。

题型:单项选择题 B1型题

某住宅楼阳台铝合金门连窗共18樘,洞口尺寸为:门高2.4m,门宽0.9m,窗高1.4m,窗宽1.0m。则该门连窗工程量为()。

A、25.2m²

B、38.88m²

C、64.08m²

D、57.8m²

题型:单项选择题 B1型题

题3图是某商品的恩格尔曲线,据此判断该商品是()

A.品牌香水

B.日常食品

C.普通服装

D.普通皮鞋

题型:单项选择题 B1型题

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 mall 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 mall 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 mall.

Many senders of unsolicited commercial electronic mall 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 mall 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 mall cannot be solved by the government alone. The development and adoption of techno-logical approaches and the pursuit of cooperative efforts with other countries will be necessary as well.

"Pornographic" in Paragraph 3 probably means ().

A. decent

B. instructional

C. sexual

D. commercial

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