工程网络图的绘制的说法,正确的是()。A.单代号网络图中可以有多个起点节点 B.双代

题型:多项选择题

问题:

工程网络图的绘制的说法,正确的是()。

A.单代号网络图中可以有多个起点节点

B.双代号网络图中应只有一个起节点和一个终节点(多目标网络计划除外)

C.双代号网络图中节点的编号必须连续

D.单代号网络图中的节点可以用圆圈或矩形表示

E.网络图中所有节点都必须有编号

考点:二级建造师建设工程施工管理建设工程施工管理
题型:多项选择题

小样本随机抽样中较准确而且便于实行的方法是()

A.单纯随机抽样

B.机械抽样

C.分层抽样

D.整群抽样

E.分层加整群

题型:多项选择题

浪漫主义文学思潮的特征

题型:多项选择题

阅读理解。

     Well, somebody had to be the richest man on earth, but why did it have to be him? William Henry Gates

Bill, now just called "Bill Gates" or "Bill G". William Henry Gates was born in Seattle. In 1973, Gates entered

Harvard University as a freshman (新生). But his heart was not in his studies. After locating (定位) the

school's computer centre, he lost himself in the world of computers once again. Gates would spend many

long nights in front of the school's computer and the next days sleeping in class. So in his junior year, Gates

left Harvard to devote his energies to designing programs for personal computers, which had just entered the

marketplace. In his junior year, Gates left Harvard to devote his energies to Microsoft, a company he had

begun in 1975 with his childhood friend Paul Allen.

     In 1980, the International Business Machines Corporation (IBM) chose Microsoft to develop the operating

system for its first personal computer, the PC. An operating system is a special type of program that contains

instructions for the operation of the computer. Gates devised the Microsoft Disk Operating System (MS-DOS)

for the IBM. Millions of copies of MS-DOS were sold for use in the IBM and IBM-compatible (兼容的) PC's.

     Microsoft continued to grow under Gates' guidance. In 1985, the company introduced the first of a series

of PC programs called windows. These programs enable users to perform multiple (多样的) tasks through

"windows" on the computer screen and to issue (发布) commands by pointing at on screen symbols rather

than by typing instructions. Microsoft has sold milljons of copies of windows. In 1998, the United States

Justice Department, along with 20 state attorneys (律师; 代理人) general, filed an antitrust (反垄断的) lawsuit

against Microsoft. The lawsuit (案件) charged that Microsoft used unfair practices to destroy its competitors.

1. Gates ____.

A. alone set up the first software company in the world

B. began to make the personal computer with his classmate

C. founded Microsoft in 1975 by himself

D. and Allen started to set up the Microsoft in 1975

2. Which of the following words have the closest meaning with the word "devised" in the third paragraph?

A. Made.

B. Find out.

C. Developed.

D. Thought of.

3. What system did the International Business Machines Corporation (IBM) choose Microsoft to develop for

    its first personal computer?

A. It was a special type of operating system that contained instructions for the computer.

B. It was a system which carried out a series of commands.

C. It was a system which performed multiple tasks through "windows" on the computer screen.

D. It was a design program.

4. Which of the following is the CORRECT order for Gates' lifetime?

    a. Gates was chosen to develop the operating system.

    b. An antitrust lawsuit was filed against Microsoft.

    c. Microsoft introduced Windows.

    d. Gates devised the MS-DOS for IBM.

A. a,b,c,d

B. a,d,c,b

C. d,c,a,b

D. b,a,d,c

题型:多项选择题

某百货公司销售空调机,在门口广告牌上写明:“凡在本处购买空调者,会给总价款百分之三的回扣,介绍推销者给付总价款百分之一的佣金。”被人发现后举报到有关部门,经调查发现该公司给付的回扣、佣金、账面上均有明确记载。该公司给付回扣的行为是( )。

A.不正当竞争行为

B.变相行贿行为

C.降价排挤行为

D.正当的促销交易行为

题型:多项选择题

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