如何确定契税的计税依据

(2013·西安一中月考)As ________ unemployment is very high at the moment，it's very difficult for people to find ________ work.

A．the；/

B．/；/

C．the；a

D．an；the

沙漠治理是公认的世界性难题，鄂尔多斯人另辟溪径，变“征服沙漠”为“善待自然”。他们把沙漠绿化、沙产品开发和生态旅游有机结合，实现了生态环境和经济效益的双赢，创造了令人瞩目的“鄂尔多斯发展模式”。这给我们的哲学启示是

①．只有充分发挥主观能动性，认识才能决定实践

②．必须坚持发挥主观能动性和尊重客观规律性的结合

③．正确的认识能够指导实践取得成功

④．人们能改造规律，造福人类

A．①③

B．②③

C．①④

D．②③④

阅读理解

     Diverse Directions produces self-guided France cycling tours for today's independent travellers.

Our tour packages provide complete ease of planning, freedom in the choice of hotels. Our self2guided

France cycling tours provide you with an excellent service.

     Advantages of Self-Guided Cycling

    France is rich in historical, cultural, and natural sights that attract many travellers. A self-guided

France cycling tour from Diverse Directions provides the best choice to appreciate the best of

France -one kilometer, one person, one moment at a time.

     What Are Included in France Cycling Tour

     Our tours feature unusual routes, wine tasting, outstanding scenery, and amazing sights such as

ancient castles, and prehistoric cave paintings, etc. Each Diverse Directions' self-guided France

cycling tour package includes bike rental, luggage transfer, hotel bookings, easy-to-use route

instructions and sight information.

     France Tour Plan

      Diverse Directions offers cyclists two touring choices: Circuit Tours and Hub & Spoke Tours.

Tour routes of Circuit Tours are for those who wish to cycle to a different place daily( with the

exception of rest days) . For travellers preferring to limit the time of changing hotels, our Hub & Spoke

Tours include one or two base locations from which you make various cycling trips to and back again.

      Which Route to Choose

     Visit our "Which Route to Choose" page to match your interests with the characteristics of each tour

route. If you want to review the detailed tour routes and photo albums of the tours that attract your

interests or if you still have questions, send our Tour Director an e-mail explaining what you' re looking

for in a tour and he'll suggest the route that' g right for you.

1. We can learn from the text that self-guided cycling tours from Diverse Directions ______.

A. are more popular among the French nowadays

B. attract people's attention from all over the world

C. will make travellers better enjoy the scenery in France

D. still need improving to meet more customers' needs

2. Which of the following service items is included in the France cycling tour?

A. Repairing bikes for travellers            

B. Designing ready-to-use routes

C. Providing free and comfortable hotels    

D. Sending guides to go with travellers

3. Compared with Circuit Tours, Hub & Spoke Tours ______.

A. are more difficult for beginners          

B. cost less and can save more time

C. can reduce travellers' trouble of changing hotels  

D. can satisfy those who want to have adventures

4. The text is most probably taken from.

A. a webpage      

B. a news report

C. a travel diary      

D. a notice

将32.64g铜与140mL一定浓度的硝酸反应，铜完全溶解产生的NO和NO₂混合气体在标准状况下的体积为

11.2L。请回答：

（1）NO的体积为 L，NO₂的体积为_______________ L。

（2）待产生的气体全部释放后，向溶液加入的NaOH溶液，恰好使溶液中的全部转化成沉淀，则原硝酸溶液的浓度为_______________ mol/L。

（3）欲使铜与硝酸反应生成的气体在溶液中全部转化为，至少需要30%的双氧水____g。

甘特图通常是描述活动和（）之间的关系。