用于保冷的绝热材料及其制品,其容重不得大于()kg/m³。A、400 B、220 C

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问题:

用于保冷的绝热材料及其制品,其容重不得大于()kg/m³。

A、400

B、220

C、100

D、50

考点:土木建筑工程通风与空调工程通风与空调工程题库
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已知一公司拟于2005年初用自有资金购置设备一台,需一次性投资100万元。经测算,该设备使用寿命为5年,税法亦准按5年计提折旧,设备投入运营后每年可新增利润20万元。假定,该设备按直线法折旧,预计的净残值率为5%,不考虑建设安装期和公司所得税。
要求:(1)计算使用期内各年净现金流量;
(2)计算该设备的净态投资回收期;
(3)计算该投资项目的投资利润率;
(4)如果以10%作为折现率,计算其净现值。

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According to traditional Cherokee beliefs, we are part of (1) . We don’t (2) with it and we’re not trying to (3) it. We are a part of the Great Life. And within the Great Life, there are three great Laws of Nature, which tell us how we have to live in (4) with everything else. The First Law of Nature is that you don’t take any life without real (5) . So we shouldn’t (6) needlessly. We believe everything is alive, including animals, plants and (7) . And so to us, taking the life of a plant is just as grave a 8() as taking the life of an animal. The Second Law is that everything we do should (9) the Great Life. And everything we do (10) the Great Life, and everything that (11) within the Great Life affects us. So it’s very important that what we do will not (12) other parts of the Great Life. The Third Law basically is that we don’t (13) where we live. And where we live is not our (14) , small community. It’s this (15) . We don’t pour chemical (16) down the drain because they all wind up in the water. It might seem a little difficult to live by those three laws in this (17) society. But there are still a lot of things that we can do to bring these laws into our lives, such as (18) , using the (19) as little as possible, and (20) gardening.

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子宫内膜癌当侵犯宫颈管时,其淋巴引流与哪种肿瘤相似?()

A.卵巢癌

B.宫颈癌

C. * * 癌

D.外阴癌

E.直肠癌

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许多舞蹈家认为,中国芭蕾舞的现状有些不尴不尬,名分很高,但实际发展却很艰难。在他们心目中,最理想的方式是,政府对芭蕾舞团给予基本且充足的支持,包括演职员的薪酬、运营经费、创作新剧目的资金,此外,院团要争取社会赞助,尽量赢得市场效益。中国芭蕾最缺的是原创,几年才有一部问世,排练一部新作起码800万元,还未必有市场,像《大红灯笼高高挂》这样有市场效益的作品少之又少,所以各团都喜欢演经典,即使经典也必须是人们熟知的作品,稍微生疏一些的都卖不出票。
这段文字意在强调( )。

A.中国芭蕾舞的现状尴尬,面临许多困难
B.政府应当对原创芭蕾舞剧提供充分的支持
C.由于财政支持不足、原创作品匮乏,中国芭蕾舞的发展举步维艰
D.芭蕾舞属于小众艺术,无法完全通过市场求生存

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校准不具备法制性,是实际企业自愿溯源行为;检定具有法制性,属于计量管理范畴。( )

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