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What did Bill do after he shot at the wood from 50 yards away

A. He drew a target round the hole.
B. He brough it in a car.
C. He put it in the garden.
D. He cut the woo

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设有关系模式SC(sno，cno，grade)，查询既选修了c1又选修了c2课程的学生学号，正确的SQL命令是

A. SELECT sno FROM sc WHERE cno="c1"AND cno="c2"
B. SELECT sno FROM sc WHERE cno="c1"AND SELECT sno FROM sc WHERE cno="c2"
C. SELECT sno FROM sc WHERE cno="c1"UNION SELECT sno FROM sc WHERE cno="c2"
D. SELECT sno FROM sc WHERE cno="c1"AND sno IN(SELECT sno FROM sc WHERE cno="c2")

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《物业管理条例》创设了业主大会、业主公约等( )项物业管理的基本制度。

A. 6
B. 7
C. 8
D. 9

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The writer came to London from ______.

Asia
B. Europe
C. America
D. Africa

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已知关系：STUDENT(sno，sname，grade)，以下关于命令 “CREATE CLUSTER INDEX s_index ON student(grade)”的描述中，正确的是

A. 按成绩降序创建了一个聚簇索引
B. 按成绩升序创建了一个聚簇索引
C. 按成绩降序创建了一个非聚簇索引
D. 按成绩升序创建了一个非聚簇索引

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What did Bill do after he shot at the wood from 50 yards away

A. He drew a target round the hole. B. He brough it in a car. C. He put it in the garden. D. He cut the woo

设有关系模式SC(sno，cno，grade)，查询既选修了c1又选修了c2课程的学生学号，正确的SQL命令是

《物业管理条例》创设了业主大会、业主公约等( )项物业管理的基本制度。

The writer came to London from ______.

已知关系：STUDENT(sno，sname，grade)，以下关于命令 “CREATE CLUSTER INDEX s_index ON student(grade)”的描述中，正确的是

A. He drew a target round the hole.
B. He brough it in a car.
C. He put it in the garden.
D. He cut the woo