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. 卡(路里)，小卡，大卡

　　Quit / kwɪt / v. 停止，放

　　注释：

Each day the men ran for approximately eight hours.

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. 卡(路里)，小卡，大卡

　　Quit / kwɪt / v. 停止，放

　　注释：

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. 卡(路里)，小卡，大卡

　　Quit / kwɪt / v. 停止，放

　　注释：

They sometimes felt sick because it was so hot.

A:Right B:Wrong C:mentioned

学生选课的关系模式为SC(SN,CN,SM)，其中SN为学号，CN为课程号，SM为成绩。检索选修3门以上课程的学生总成绩，并按总成绩的降序排列。
SELECT SN,SUM(SM)
FROM SC
______
0RDER BY 2 DESC;

A:GROUP BY SN
HAVING COUNT(^*)＞=3 B:HAVINGCOUNT(^*)＞=3
GROUP BY SN C:GROUP BY SM
HAVING COUNT(^*)＞=3 D:HAVING COUNT(^*)＞=3
GROUP BY SM

有如下SQL语句：SELECT班级名称，姓名FROM班级，学生WHERE班级．班级号一学生．班级号AND年龄>=20AND性别=”男”0RDERBY班级名称DESC执行该语句后，查询结果中共有几条记录，且第一条记录的学生姓名是（）。

A:2刘鹏 B:2刘立洋 C:3刘鹏 D:3刘立洋

第31～35题使用如下三个数据库表：学生表：student（学号，姓名，性别，出生日期，院系）课程表：course（课程号，课程名，学时）选课成绩表：score（学号，课程号，成绩）其中出生日期的数据类型为日期型，学时和成绩为数值型，其他均为字符型。

A:SELECT S．学号，姓名，平均成绩FROM student s，score sc B:WHERE S．学号=sc．学号 C:GROUP BY s．学号HAVING COUNT(*)>=5 ORDER BY平均成绩DESC D:SELECT s．学号，姓名，AVG(成绩)FROM student s，score sc E:WHERE s．学号=S F:学号AND COUNT(*)>=5 G:GRoUP BY学号0RDER BY 3 DESC SELECT S．学号，姓名，AVG(成绩)平均成绩FROM student s，score sc H:WHERE s．学号=S 学号AND COUNT(*)>=5 I:GROUP BY s．学号ORDER BY平均成绩DESC J:SELECT s．学号，姓名，AVG(成绩)平均成绩FROM student s，score sc K:WHERE s．学号=sc．学号 L:GROUP BY s．学号HAVING COUNT(*)>=5 0RDER BY 3 DESC

设有订单表order(其中包含字段：订单号，客户号，职员号，签订日期，金额)，查询 2007年所签订单的信息，并按金额降序排序，正确的SQL命令是( )。

A:SELECT*FROM order WHERE YEAR(签订日期)=2007 0RDER BY金额DESC B:SELECT*FROM order WHILE YEAR(签订日期)=2007 0RDER BY金额ASC C:SELECT*FROM order WHERE YEAR(签订日期)=2007 0RDER BY金额ASC D:SELECT*FROM order WHILE YEAR(签订日期)=2007 0RDER BY金额DESC

下列判断正确的有（　）。
（1）2011年江苏省一般预算支出与一般预算收入的缺口比2005年的3倍还大。
（2）2006年～2011年六年，江苏省一般预算收入、一般预算支出、税收收入三者保持相同的变动趋势。
（3）”十一五”时期江苏省一般预算支出的年平均增量比税收收入的年平均增量多207亿元

A:0个 B:1个 C:2个 D:3个

下列判断正确的有（　）。
（1）2011年上半年，我国乡村居民所有消费品价格同比增幅均高于城镇居民
（2）2011年上半年，我国乡村居民消费支出占全国居民消费支出比重最大的月份是6月份
（3）2011年上半年，我国城乡居民消费价格指数月同期增幅具有相同的变动特征

A:0个 B:1个 C:2个 D:3个

根据下列资料，回答下列问题。

A: B: C: D: