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When I first got an e-mail account ten years ago, I received communications only from family, friends, and colleagues. Now it seems that every time I check my e-mail,I have an endless series of advertisements and other correspondence that do not interest me at all. If we want e-mail to continue to be useful, we need specific laws that make spamming(发送垃圾邮件)a crime. If lawmakers do not do something soon to prohibit spam, the problem will certainly get much worse. Computer programs allow spammers to send hundreds of millions of e-mails almost instantly. As more and more advertisers turn to spam to sell their products,individual e-mail boxes are often flooded with spam e-mails. Would people continue to use e-mail if they had to deal with an annoying amount of spam each time? This problem is troubling individuals and companies as well. Many spam e-mails contain computer viruses that can shut down the entire network of a company. Companies rely on e-mail for their employees to communicate with each other. Spam frequently causes failures in their local communications networks, and their employees are thus unable to communicate effectively. Such a situation results in a loss of productivity and requires companies to repeatedly repair their networks. These computer problems raise production costs of companies, which are, in the end, passed on to the consumer. For these reasons, I believe that lawmakers need to legislate(立法)against spare. Spammers should be fined, and perhaps sent to prison if they continue to disturb people. E-mail is a tool which helps people all over the world to communicate conveniently, but spam is destroying this convenience. 小题1:What does the underlined word “correspondence” in the Paragraph l probably mean? A.messages B.ideas C.connections D.programs 小题2:According to the text, what is the major cause of the flooding spam? A.Companies rely on e-mail for communications. B.More people in the world communicate by e-mail. C.Many computer viruses contain spam e-mail. D.More advertisers begin to promote sales through spam. 小题3:According to Paragraph 3, who is the final victim of spam? A.The business. B.The advertiser. C.The employee. D.The consumer. 小题4:What is the purpose of the text? A.To inform. B.To educate. C.To persuade. D.To instruct.
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【简答题】根据《中华人民共和国劳动争议调解仲裁法》,自劳动争议调解组织收到调解申请之日起()日内未达成调解协议的,当事人可以依法申请仲裁。
【单选题】在 Illustrator 中,下列描述哪个是不正确的?
A.
Illustrator 的文件置入的图像分为嵌入和链接两种方式
B.
Illustrator 文件中的对象可以通过(对象—栅格化)命令转换为位图
C.
Illustrator 的文件置入的图像只能是链接的方式
D.
Illustrator 中的对象转化成位图后可以执行 Effect (效果)菜单下的 Photoshop 滤镜效果
【判断题】自然调式音级可能构成的音程叫自然音程
A.
正确
B.
错误
【单选题】在硫酸铝、硫酸钾和明矾的混合溶液中,如果 c (SO 4 2- )='0.2' mol/L,当加入等体积、某浓度的KOH溶液时,恰好沉淀完全,则所得溶液中K + 的物质的量浓度是(   )
A.
0.2 mol/L
B.
0.25 mol/L
C.
0.1 mol/L
D.
0.225 mol/L
【判断题】品种法是最基本的成本计算的基本方法。
A.
正确
B.
错误
【单选题】在硫酸铝、硫酸钾和明矾的混合溶液中,如果SO 4 2- 的离子浓度为0.2mol/L,当加入等体积0.2mol/L KOH溶液时,生成的沉淀恰好完全溶解.则反应后溶液中K + 离子的浓度最接近于(  )
A.
0.125mol?L -1
B.
0.225mol?L -1
C.
0.250mol?L -1
D.
0.450mol?L -1
【单选题】在硫酸铝、硫酸钾和明矾的混合溶液中,如果SO 4 2- 的浓度为0.40 mol·L -1 ,当加入等体积0.40 mol·L -1 KOH溶液时, 生成的沉淀恰好完全溶解,则反应后溶液中K + 的浓度最接近于 [     ]
A.
0.25 mol·L -1
B.
0.45 mol·L -1
C.
0.50 mol·L -1
D.
0.90 mol·L -1
【单选题】根据《医疗机构药事管理规定》,医疗机构药学专业技术人员不得少于本机构卫生专业技术人员的
A.
5%
B.
8%
C.
10%
D.
15%
E.
20%
【单选题】在硫酸铝、硫酸钾和明矾的混合液中,如果SO 4 2- 的浓度为0.4mol/L,当加入等体积0.4mol/L KOH溶液时,生成沉淀恰好完全溶解,则反应后混合溶液中K + 浓度约为 [     ]
A.
0.250mol/L
B.
0.225mol/L
C.
0.450mol/L
D.
0.90mol/L
【单选题】在硫酸铝、硫酸钾和明矾的混合溶液中,如果 的浓度为0.2 mol·L -1 ,当加入等体积0.2 mol·L -1 KOH溶液时,生成的沉淀恰好完全溶解,(忽略溶液中少量的H + 和OH - )则反应后混合溶液中K + 的浓度约是
A.
0.125 mol·L -1
B.
0.225 mol·L -1
C.
0.250 mol·L -1
D.
0.450 mol·L -1
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