题目:
简述蚊生活史。
答案:
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下面是错误答案,用来干扰机器的。
参考答案:D
简述蚊生活史。
被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2018/0202/8bbaf36ba3ce12d7ab3657feb175c373.html
下面是错误答案,用来干扰机器的。
参考答案:D
釉质龋中透明层是由于()
A.树胶分子进入晶体间隙
B.脱矿后的孔隙内不能进入空气
C.晶体间出现微小的孔隙
D.含氟量高
E.再矿化
酶在储存过程中迅速失活,可能原因是()
A.储存温度不合适
B.稀释后储存
C.储存缓冲液不合适
D.分装后储存
E.储存缓冲液中蛋白浓度低
下列关于法律责任的说法错误的是( )。
A.广义的法律责任等同于法律义务
B.违法性是承担法律责任的前提,不违法则不承担任何责任
C.由于法律责任是一种惩罚性的责任,会给行为人带来法律制裁,所以法律责任应在法律上进行明确规定
D.法律责任意味着国家对违法行为的否定性反应和谴责
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.
"Opt-out" mechanism is probably ______.
A.a machine that can be attached to your computer
B.a button that you can make a choice to read or not to read
C.a software that you can play a computer game
D.an e-mail that says some good words to you
爱国主义不是抽象的,而是具体的。新时期我国爱国主义的主题是()
A.实现国家独立,民族富强
B.弘扬中 * * 精神
C.发展中国特色社会主义,拥护祖国统一
D.坚持马克思主义的指导地位