消息经过散列函数处理后得到的是() A.公钥 B.私钥 C.消息摘要 D.数字签名

题型:单项选择题

问题:

消息经过散列函数处理后得到的是()

A.公钥

B.私钥

C.消息摘要

D.数字签名

考点:电子商务师电子商务安全知识电子商务安全知识题库
题型:单项选择题

生产运作流程的过程要素包括()

A.投入

B.产出

C.任务

D.物流和信息流

E.库存

题型:单项选择题

目前在我国家庭固定电话接听手机电话时是否要交费?

题型:单项选择题

计算题:

A公司目前想对甲公司进行价值评估,甲公司2006年的有关资料如下:

(1)销售收入1000万元,销售成本率为60%,销售、管理费用占销售收入的15%,折旧与摊销占销售收入的5%,债权投资收益为20万元,股权投资收益为10万元(估计不具有可持续性)。资产减值损失为14万元,公允价值变动损益为2万元,营业外收支净额为5万元。

(2)经营现金为40万元,其他经营流动资产为200万元,经营流动负债为80万元,经营长期资产为400万元,经营长期负债为120万元,折旧与摊销为50万元

(3)甲公司的平均所得税率为20%,加权平均资本成本为10%,可以长期保持不变。

要求:

(1)预计2007年的税后经营利润比2006年增长10%,计算2007年的税后经营利润;

(2)预计2007年的经营营运资本比2006年增加8%,计算2007年的经营营运资本增加数额;

(3)预计2007年的净经营长期资产比2006年增加5%,计算2007年的净经营长期资产增加数额;

(4)预计2007年的折旧与摊销增长10%,计算2007年的经营现金毛流量、经营现金净流量和实体现金流量;

(5)假设从2008年开始,预计实体现金流量每年增长10%,从2010年开始,实体现金流量增长率稳定在5%,不查系数表,计算甲公司在2007年初的实体价值。

题型:单项选择题

Who won the World Cup 1994 football game What happened at the United Nations How did the critics like the new play (1) an event takes place, newspapers are on the streets (2) the details. Wherever anything happens in the world, reporters are on the spot to (3) the news.
Newspapers have one basic (4) , to get the news as quickly as possible from its source, from those who make it to those who want to (5) it.
Radio, telegraph, television, and (6) inventions brought competition for newspaper. So did the development of magazines and other means of communication. (7) , this competition merely spurred the newspapers on. They quickly made use of the newer and faster means of communication to improve the (8) and thus the efficiency of their own operations. Today more newspapers are (9) and read than ever before. Competition also led newspapers to branch out into many other fields. Besides keeping readers (10) of the latest news, today’s newspapers (11) and influence readers about politics and other important and serious matters. Newspapers influence readers’ economic choices (12) advertising. Most newspapers depend on advertising for very (13) .
Newspapers are sold at a price that (14) even a small fraction of the cost of production. The main (15) of income for most newspapers is commercial advertising. The (16) in selling advertising depends on a newspaper’s value to advertisers. This (17) in terms of circulation. How many people read the newspaper
Circulation depends (18) on the work of the circulation department and on the services or entertainment (19) in a newspaper’s pages. But for the most part, circulation depends on a newspaper’s value to readers as a source of information (20) the community, city, county, state, nation, and world—and even outer space.

[A] make [B] publish [C] know [D] write

题型:单项选择题

数控顶尖()敲打、拆卸和扭紧压盖。

A.随时可以

B.加工时可以

C.不加工时可以

D.不可以

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