深龋引起的可复性牙髓炎，采用间接盖髓术时，常使用的盖髓剂是（） A.氢氧化钙 B.磷

药物用于人体后，发生结构转化或生物转化的过程是（）

A.吸收

B.分布

C.排泄

D.代谢

E.消除

《2010-2020年深化干部人事制度改革规划纲要》提出，要完善民主推荐制度，健全不同类型、不同职位干部民主推荐的办法，按照代表性、知情度和（）原则，合理确定参加民主推荐人员范围。

A、广泛性

B、相关性

C、了解度

D、熟悉度

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. what B. whether C. why D. how

Windows中，剪切板是（）。

A.硬盘上的一块区域

B.软盘上的一块区域

C.内存中的一块区

D.高速缓冲区中的一块区域

如何使用透明色对形状着色？