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PAC    音标拼音: [p'æk]
概率几乎正确

概率几乎正确

pac
数学程序包 MATH-PAC

PAC
n 1: committee formed by a special-interest group to raise money
for their favorite political candidates [synonym: {political
action committee}, {PAC}]

PAC \PAC\ (p[a^]k), n. [Acronynm from Political Action
Committee.] (Politics)
A {political action committee}, a committee formed by an
organization or special-interest group to raise money to
support candidates for office or to influence legislation. A
PAC provides a legal means for corporations in the U. S. to
support political candidates even when direct contributions
from corporations to candidates is forbidden by law. In
theory, the corporation may not itself contribute to a PAC,
but may pay the expenses of raising money from individuals.
PACs may also be formed by organizations other than
commercial corporations, such as trade associations.
[Acronym, U. S.]

Note: PACs became popular in the 1970's after campaign
finance reform laws put limits on the amount of money
which an individual can contribute to each candidate
for public office. In addition to simply supporting
candidates with specific viewpoints, the unstated
purpose of PACs is to make politicians aware of their
viewpoints, by aggregating sums of money into
significant single donations. This latter effect has
aroused criticism of PACs from reformers who feel that
large donations bias the political process.
[PJC]


Pac \Pac\ (p[a^]k), n.
A kind of moccasin, having the edges of the sole turned up
and sewed to the upper. --Knight.
[1913 Webster]


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    聚合氯化铝(PAC),简称聚铝,是介于AlCl3和Al (OH)3之间的一种水溶性无机高分子聚合物,化学通式为 [Al2(OH)nCl6-n]m,其中m代表聚合程度,n表示聚合氯化铝产品的中性程度,n=1~5为具有Keggin结构的高电荷聚合环链体,对水中胶体和颗粒物具有高度电中和及桥联作用
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    PAC has been helping me with static control projects for over a decade From large format printing to mail shop, with PAC we are always able to come up with a way to fit a solution
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  • Play Pac-Man - Classic Arcade Game Online
    Play the classic Pac-Man arcade game for free online Navigate mazes, eat dots, avoid ghosts in this authentic recreation of the 1980 original
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    PAC offers an extensive portfolio of cutting-edge solutions for gas chromatography, elemental analysis, physical properties, and more
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    PAC 是石油化工领域实验室和在线分析仪器仪表的领先制造商,满足并遵循 ISO 9001-2015和17025-2017 规范,提供涵盖气相色谱、元素分析和物性分析一站式石化分析解决方案,旗下拥有 AC、Alcor、Antek、Cambridge Viscosity、Herzog、ISL、PetroSpec 和 Phase Technology 等行业领导品牌。
  • Political action committee - Wikipedia
    At the U S federal level, an organization becomes a PAC when it receives or spends more than $1,000 for the purpose of influencing a federal election, and registers with the Federal Election Commission (FEC), according to the Federal Election Campaign Act as amended by the Bipartisan Campaign Reform Act of 2002 (also known as the McCain
  • Palo Alto College | Alamo Colleges
    Introducing PAC Leads, a dynamic leadership development program allowing professionals to build leadership skills, engage with industry experts, and grow their networks without restrictive costs or time commitments
  • 政治行动委员会 - 维基百科,自由的百科全书
    政治行动委员会 (英语: Political Action Committee, 简称: PAC)是 美国 的一种 527组织,它将成员们的竞选捐款汇集到一起用于捐赠给候选人的 选举活动 、 提案 或 立法。





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