什么是用户账号?其主要作用是什么?

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什么是用户账号?其主要作用是什么?

考点:计算机操作系统网络操作系统网络操作系统题库
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在MGB1420万能磨床的自动循环工作电路系统中,通过微动开关SQ1、SQ2,行程开关SQ3,万能转换开关SA4,时间继电器( )和电磁阀YT与油路、机械方面配合实现磨削自动循环工作。

A.KA

B.KM

C.KT

D.KP

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21世纪初可持续发展的保障措施有( )。

A.运用行政手段,提高可持续发展的综合决策水平

B.运用经济手段,建立有利于可持续发展的投入机制

C.运用科技手段,为推进可持续发展提供强有力的支撑

D.运用示范手段,提高全社会实施可持续发展战略的法制化水平

E.运用法律手段,做好重点区城和领域的试点示范工作

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In 2008, Dee, Fi, Gee and Ki formed a private limited company to pursue chemical research. They each took 100 shares in the company and each of them became a director in the company. The articles of association of the company were drawn up to state that Dee, a qualified accountant, was to act as the company secretary for a period of five years, at a yearly salary of £20,000.In May 2012, Fi, Gee and Ki discovered that Dee had passed on some research results to a rival company.As a consequence, Fi, Gee and Ki propose the following measures:(a) to remove Dee from the board of directors; (2 marks)(b) to dismiss Dee from her post as company secretary without any payment for the work she has already done, in spite of Dee’s claim that she has a contract of employment by virtue of the articles of association and that she cannot be removed before the five-year period is completed; (4 marks)(c) to alter the articles of association to require Dee to sell her shares to them. (4 marks)Required:Advise Fi, Gee and Ki as to the legality of the above proposals and how they may be achieved.Note: The split of the mark allocation is shown against each of the proposals above. (10 marks)

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福利国家社会保障制度的特点是()。

A.保障的对象是全体社会成员

B.福利支出主要由企业和政府负担

C.保障水平比较高

D.保障项目齐全

E.强调享受社会保障的权利与履行义务相结合

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