Across the Deserts

  The SaharaDesertis the largest desert in the world. It stretches across Africa fromSenegaltoEgypt. TheSaharaDesertis an unfriendly environment. During the day it"s very hot, and at night it’s sometimes very cold. It is also difficult to find water in theSahara.

  In 2006, Kevin Lin, Ray Zahab, and Charlie Engle decided to do something very difficult. They made the decision to run across the Sahara Desert 4,300 miles (6,920km). It seemed impossible to do, but they wanted to try. The three men liked to test themselves, and this would be a very big test.

  On the morning of November 2, Kevin, Ray, and Charlie started their trip across theSahara. Every morning they began running at 5:00. At11 a.m. they stopped and rested until 5 p.m. Then they ran again until 9:30 in the evening. Each day they ran about 40 miles (64 km). Every day it was the same thing. They got up and ran. They listened to music on their iPods, and they ran and ran.

  Kevin, Ray, and Charlie needed to eat a lot of food during their trip. Most people need about 2,000 calories of food each day. Kevin, Ray, and Charlie needed between 6,000 and 9,000 calories every day. That"s a lot of food! They also needed to drink a lot of water.

  The three men had some problems on their trip, and many times they wanted to quit and go home. It was often very hot (140°F/60°C) during the day, and the heat made them sick. Their legs and feet hurt. Sometimes it was very windy, and they couldn"t see. One time they got lost. But they didn"t quit. After 111 days, Kevin, Ray; and Charlie successfully finished their trip across theSaharaDesert. They hugged each other and put their hands in the water of theRed Sea. Then they ran to a hotel to take a long shower.

  词汇:

  Stretch / strɛtʃ / v. 延伸,伸展

  Calorie / "kælərɪ / n. (路里),小卡,大卡

  Quit / kwɪt / v. 停止,放

  注释:

  1. ... made the decision to run across .........决正跑步横跨......

In the middle of the day: the men usually stopped running.

A:Right B:Wrong C:mentioned

Across the Deserts

  The SaharaDesertis the largest desert in the world. It stretches across Africa fromSenegaltoEgypt. TheSaharaDesertis an unfriendly environment. During the day it"s very hot, and at night it’s sometimes very cold. It is also difficult to find water in theSahara.

  In 2006, Kevin Lin, Ray Zahab, and Charlie Engle decided to do something very difficult. They made the decision to run across the Sahara Desert 4,300 miles (6,920km). It seemed impossible to do, but they wanted to try. The three men liked to test themselves, and this would be a very big test.

  On the morning of November 2, Kevin, Ray, and Charlie started their trip across theSahara. Every morning they began running at 5:00. At11 a.m. they stopped and rested until 5 p.m. Then they ran again until 9:30 in the evening. Each day they ran about 40 miles (64 km). Every day it was the same thing. They got up and ran. They listened to music on their iPods, and they ran and ran.

  Kevin, Ray, and Charlie needed to eat a lot of food during their trip. Most people need about 2,000 calories of food each day. Kevin, Ray, and Charlie needed between 6,000 and 9,000 calories every day. That"s a lot of food! They also needed to drink a lot of water.

  The three men had some problems on their trip, and many times they wanted to quit and go home. It was often very hot (140°F/60°C) during the day, and the heat made them sick. Their legs and feet hurt. Sometimes it was very windy, and they couldn"t see. One time they got lost. But they didn"t quit. After 111 days, Kevin, Ray; and Charlie successfully finished their trip across theSaharaDesert. They hugged each other and put their hands in the water of theRed Sea. Then they ran to a hotel to take a long shower.

  词汇:

  Stretch / strɛtʃ / v. 延伸,伸展

  Calorie / "kælərɪ / n. (路里),小卡,大卡

  Quit / kwɪt / v. 停止,放

  注释:

  1. ... made the decision to run across .........决正跑步横跨......

They sometimes felt sick because it was so hot.

A:Right B:Wrong C:mentioned

设函数f(x)在[0,1]上f"(x)>0,则f'(0),f'(1),f(1)-f(0)或f(0)-f(1)的大小顺序是______.

A:f'(1)>f'(0)>f(1)-f(0) B:f'(1)>f(1)-f(0)>f'(0) C:f(1)-f(0)>f'(1)>f'(0) D:f'(1)>f(0)-f(1)>f'(0)

设f′(x)在[a,b]上连续,且f′(a)>0,f′(b)<0,则下列结论中错误的是()。

A:至少存在一点x0∈(a,b),使得f(x0)>f (a) B:至少存在一点x0∈(a,b),使得f(x0)>f (b) C:至少存在一点x0∈(a,b),使得f′(x0)=0 D:至少存在一点x0∈(a,b),使得f(x0)=0

根据以下资料,回答以下试题。   

能够正确描述2015年新能源汽车产业五种专利申请数占比的统计图是:   

A:正确 B:错误 C:@D.

2011年的总人口中,“65岁及以上”的人口比“0-14岁”的人口大约多( )万人。

A:7910 B:8850 C:9320 D:9970

  

2011~2013年,农村居民年人均现金收入超过1万元的年份有几个?( )

A:0 B:1 C:2 D:3

A:2 B:8 C:9 D:10

  

若2011年3月全国、城镇和乡村的居民消费价格指数分别用I1,I2,I3表示,则下列正确的是( )。
A.I1>I2>I3
B.I3>I1>I2
C.I1<I2<I3
D.I2<I1<I3

A:A B:B C:C D:D

  

2011~2013年,农村居民年人均现金收入超过1万元的年份有几个?()

A:0 B:1 C:2 D:3

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