什么是水的预处理？其主要内容和任务包括哪些？

阅读下列材料：

材料一 朝辞白帝彩云间，千里江陵一日还。

两岸猿声啼不住，轻舟已过万重山。

材料二 国破山河山，城春草木深，

感时花溅泪，恨别鸟惊心。

烽火连三月，家书抵万金，

白头搔更短，浑欲不胜簪。

请回答：

（１）上面两首诗分别是谁的作品，分别体现了怎样的创作风格？分别具有这样风格的古代文学作品还有哪些？请各举一例。

（２）分析两首诗中蕴涵了两位诗人怎样的思想感情。

材料三

南宋·马远《梅石溪凫图》

材料四

南宋·马远《踏歌图》

（３）仔细观察并结合所学知识判断，材料三和材料四分别属于什么画种？

（４）这两个画种分别产生于什么时期？分析当时出现这样不同画种的原因分别是什么？

（５）根据材料并结合所学知识，思考中国文学和绘画自唐以后开始出现了趋势？原因是什么？

122-124

提示慢性肾小球肾炎晚期的是

A．白细胞管型
B．红细胞管型
C．透明管型
D．蜡样管型
E．上皮细胞管型

Although there are many skillful Braille readers, thousands of other blind people find it difficult to learn that system. They are thereby shut (1) from the world of books and newspapers, having to (2) on friends to read aloud to them.

A young scientist named Raymond Kurzweil has now designed a computer which is a major (3) in providing aid to the (4) .His machine, Cyclops, has a camera that (5) any page, interprets the print into sounds, and then delivers them orally in a robot-like (6) through a speaker. By pressing the appropriate buttons (7) Cyclops’s keyboard, a blind person can "read" any (8) document in the English language.

This remarkable invention represents a tremendous (9) forward in the education of the handicapped. At present, Cyclops costs $ 50,000. (10) , Mr. Kurzweil and his associates are preparing a smaller (11) improved version that will sell (12) less than half that price. Within a few years, Kurzweil (13) the price range will be low enough for every school and library to (14) one. Michael Hingson, Director of the National Federation for the Blind, hopes that (15) will be able to buy home (16) of Cyclops for the price of a good television set.

Mr. Hingson’s organization purchased five machines and is now testing them in Maryland, Colorado, Iowa, California, and New York. Blind people have been (17) in those tests, making lots of (18) suggestions to the engineers who helped to produce Cyclops.

"This is the first time that blind people have ever done individual studies (19) a product was put on the market," Hingson said. "Most manufacturers believed that having the blind help the blind was like telling disabled people to teach other disabled people. In that (20) , the manufacturers have been the blind ones.

9（）

A.stride

B.trail

C.haul

D.footprint

下列是配制仪表电气保护的一般要求，错误的是（）。

A.敷设在多尘和潮湿场所电气保护套管，它的管口与管子间接处，管子与接线盒、穿线盒的连接处都应密封

B.保护套管可以用螺纹连接，也可以用焊接方法连接

C.保护套管与设备、仪表的连接，应采用扰性金属管

D.仪表用电缆或补偿导线的保护套管一般不埋地敷设

玉米制种时确定父母本行比的原则是：在保证父本有足够量花粉的前提下，适当增加母本行数。