[多选题]忠诚对人民警察的要求就是对党、国家、法律和人民绝对忠诚,绝对纯洁,绝对可靠, 这是人民警察必须具备的政治品质。这里的忠诚包括:
A.政治忠诚
B.信仰忠诚
C.行政忠诚
D.纪律忠诚

近年来，在全球电脑市场不景气的大环境下，戴尔却始终保持着较高的收益，并且不断增加市场份额。我们习惯于给成功者贴上“标签式”的成功秘笈，正如谈及沃尔玛成就商业王国时，“天天低价”被我们挂在嘴边；论及戴尔的成功之道，几乎是众口一词地归结为“直销模式”。
戴尔成功的诀窍在哪儿该公司分管物流配送的副总裁迪克·亨特一语道破天机：“我们只保存可供5天生产的存货，而我们的竞争对手则保存30天、45天，甚至90天的存货。这就是区别。”
由于材料成本每周就会有1%的贬值，因此库存天数对产品的成本影响很大，仅低库存一项就使戴尔的产品比许多竞争对手拥有了8%左右的价格优势。
亨特无疑是物流配送时代浪尖上的弄潮者。亨特在分析裁尔成功的时候说：“戴尔总支出的74%用在材料配件购买方面，2000年这方面的总开支高达210亿美元，如果我们能在物流配送方面降低0.1%，就等于我们的生产效率提高了10%。物流配送对企业的影响之大由此可见一斑。”
而高效率的物流配送使戴尔的过期零部件比例保持在材料开支总额的0.05%～0.1%之间，2000年戴尔全年在这方面的损失为2100万美元。而这一比例在戴尔的对手企业都高达2%～3%，在其他工业部门更是高达4%～5%。
分析下列问题：
（1）分析库存的利与弊。
（2）分析提高企业库存周转率的作用。

Passage Two
Sioux names were a language unto themselves, laden with descriptive, allusive, or even magical meaning. A Sioux baby was named soon after birth--usually by a medicine man or a paternal relative--and the entire village participated in the occasion. The infant might be named for an animal, for a physical phenomenon such as thunder that occurred on the day of the birth, or even for a brave deed that once had been performed by the giver of the name. A woman generally kept the name she received at birth, but a man often replace his original name with a new one that celebrated a personal act of valor, recalled an encounter with an unusual animal, or perhaps was inspired by a dream. However, a man who had a distinguishing characteristic was forever known by an apposite nickname, such as Big Hand. Because Sioux names almost always were based on something objective, they could easily be rendered as pictographs-frequently with a line connecting visual representat
A. a woman
B. a man
C. a name
D. an act