学校图书室有9个书架，每个书架上有300本书．学校图书室共有多少本书？

中国古代饮茶之风始于唐，盛于宋。到宋代，茶叶已成为中原及周边各族人民”一日不可以无“的日常消费品，对宋代的社会生活产生了重大影响。

材料一 西戎茶马之市，自宋已然。盖土蕃潼酪腥膻，非茶不解其毒……（中原）藉之可以得马。以草木之叶，易边场之用，利之最大者也。——[明]谢肇制《五杂俎》

材料二 蜀中旧使交子（纸币），惟有茶山交易最为浩瀚。——[宋]苏辙《论蜀茶五害状》

材料三 宋榷（专卖）茶之制，择要会之地，日江陵、日真州（江苏仪征）……初数户，后繁之。市中茶坊林立，徽人、晋人荟萃，五音杂语。……输之于边，数倍利之，骤富焉。——[宋]庄季裕《鸡肋编》

材料四 （东京）朱雀门外除东西两教坊，余皆居民或茶坊。……茶坊每五更点灯，博易，买卖衣物、图画、花环、领抹之类，至晓即散，谓之鬼市子。……又北山子茶坊……仕女往往夜游吃茶于彼。——[宋]孟元老《东京梦华录》

请回答：

（1）据材料一和所学知识，分析宋政府茶叶专卖的主要原因。

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（2）据材料二、三、四和所学知识，分析茶叶贸易对宋代商品经济的影响。

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（3）茶坊、瓦肆等大量兴起，乃宋代开创之新气象。结合所学知识，说明宋代在城市商业布局、思想、文学等方面的新变化。

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通常所说的微型机主机是指( )。

A．CPU和内存

B．CPU和硬盘

C．CPU、内存和硬盘

D．CPU、内存与CD-ROM

Do you long for lasting camp memories? Sure we can guarantee it.

Shadow Ridge Summer Camps offer so many exciting things for campers to do. Unlike other camp programs that include horses as a small part of their program, at Shadow Ridge horses ARE the program ! We are 100% horse from stable（马厩）management, nature walks, and track rides to bedroom furnishings.

Horses help us achieve many of our aims. Girls can learn to develop responsibility, self-confidence and personal connections in their lives while having fun. Using horses as a wonderful tool for education, our camps offer an interesting place for growth and learning:

Imagine each girl having her very own horse to spend time with and a best friend to love and take care of. Each camper is responsible for a horse for the week. Our riding program provides a lot of riding and lesson time. Campers will learn how to take care of the horse and the tack（马具）, as well as how to ride. Days are filled with horse-related activities to strengthen the connection between each girl and horse, as the girls learn to work safely around the horses.

At Shadow Ridge we try to create a loving, caring family atmosphere for our campers. We have “The Bunkhouse”（4 girls）, the “Wranglers Roost”（4 girls）, and “The Hideout”（2 girls）in our comfortable 177-year-old farm house. All meals are home cooked, offering delicious and healthy food for the hungry rider.

Our excellent activities create personalized memories of your child’s vacation. Each child will receive a camp T-shirt and a photo album （usually 300-500 pictures） of their stay at camp.

Our camps are offered during June, July and August 2013, for small groups of girls aged13-16 years, not only from Canada but also other parts of the world.

We will send you full program descriptions at your request.

小题1:What is the main purpose of the passage?

A．To attract people to the camps.

B．To talk about camping experiences.

C．To describe the programs of the camps.

D．To explain the aims of the camps.小题2:What do we know about the camp programs at Shadow Ridge?

A．Campers are required to wear camp T-shirts.

B．Horses play a central role in the activities.

C．Campers learn to cook food for themselves.

D．Horse lessons are offered all the year round.小题3:The programs at Shadow Ridge mainly aim to help people ________.

A．understand horses better

B．enjoy a family atmosphere

C．have fun above other things

D．achieve an educational purpose小题4:The passage is written mainly for ________.

A．horse riders

B．teenage girls

C．Canadian parents

D．international travelers

患者，男，40岁，20年前曾有午后低热、乏力、盗汗、咳嗽、痰中带血。当时诊断为右上浸润型肺结核。应用异烟肼、利福平、吡嗪酰胺治疗3个月后，症状消失，遂停药。此后间断有咳嗽、咳痰，未做检查与治疗。半年前出现低热、乏力、消瘦、痰中带血。x线胸片示右上肺厚壁空洞，边缘钙化。

最可能的诊断为( )

A．浸润性肺结核

B．支气管肺癌

C．慢性纤维空洞性肺结核

D．慢性肺脓肿

E．慢性支气管炎

电压负反馈自动调速系统，当负载增加时，则电动机转速下降，从而引起电枢回路（）。

A、端电压增加

B、端电压不变

C、电流增加

D、电流减小