按照数据库应用系统生命周期模型,在开发某数据库应用系统时,对系统采用的软硬件及技术方

题型:单项选择题

问题:

按照数据库应用系统生命周期模型,在开发某数据库应用系统时,对系统采用的软硬件及技术方案等作出合理的评估并提出选择建议的工作属于________。

A.规划与分析阶段的系统规划与定义

B.规划与分析阶段的可行性分析

C.需求分析阶段的业务规则需求分析

D.系统设计阶段的总体设计

考点:计算机等级考试软件测试工程师计算机四级软件测试工程师
题型:单项选择题

软骨母细胞瘤的组织成分不包括()

A.软骨母细胞

B.基质细胞

C.多核巨细胞

D.少量软骨

E.软骨基质呈窗格状或花边状钙化

题型:单项选择题

下列()币种采用舍位记账法。

A、瑞士法朗

B、丹麦克朗

C、日元

D、澳大利亚元

题型:单项选择题

实验结果表明,对于流体在圆管内流动,当Re>( )时,流动形态为湍流。

A.2000

B.3000

C.4000

D.5000

题型:单项选择题

CNaOH=5mol/L的NaOH溶液100ml,加水稀释至500ml,则稀释后溶液的浓度是()

A.2mol/L

B.1mol/L

C.5mol/L

D.4mol/L

E.3mol/L

题型:单项选择题

Recycling Paper


The process of recycling paper can help to reduce deforestation and energy consumption on a significant scale. There are many different reasons why we should recycle paper products, and some of these are (26) in the paragraphs below.
Energy consumption will always be on the (27) as population levels grow, and so any manufacturing processes which help to reduce energy consumption are (28)
The Energy Information Administration (EIA) claim that there can be as (29) as a 40% energy saving when recycling paper over producing paper (30) the direct raw material.
Although recycling paper has many (31) , it also has its drawbacks. One of these drawbacks is that we cannot recycle the (32) paper product for eternity, as the fibers contained within the paper degrade over time, (33) their strength and length.
On (34) , an individual paper fiber can only be recycled a (35) of six times. Although this is a significant drawback, the six time recycling process will help to (36) a great deal of energy when you consider (37) much paper there is to be recycled.
If paper fibers can be recycled up to 6 times, and we recycled all paper products, this could help to (38) the intensity of deforestation for paper products up to a factor of 6.
With paper production said to (39) around 40% of harvested wood, and paper said to (40) around 90% wood, you can see how recycling paper is an important process for the (41) of our forests.
Today, the use of recycled paper products is on the increase, as more and more people begin to recycle paper (42) products around the home.
Although there are slight differences in the recycling processes of different (43) of paper products (e.g. corrugated, mixed paper, newspaper products), we are able to recycle just about any type of paper product around today.
The recycling logo helps to (44) a recyclable product and can also sometimes help to identify if the product contains any recycled material, in the form of a percentage. This helps a consumer to identify the (45) of recycling various products.

A. namesB. ways C. members D. forms

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