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【单选题】
数据库物理设计中一项重要工作是为数据库文件建立合适的索引，以提高数据库的访问效率。若数据库中存放两个关系：教师(教师编号，姓名)和课程(课程号，课程名，教师编号)，为快速查出某位教师所讲的课程，应该______。A.
在教师表上按教师编号建立索引
B.
在教师表上按名字建立索引
C.
在课程表上按课程号建立索引
D.
在课程表上按教师编号建立索引
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【单选题】The state of ____ is the largest in area of all the states and _____ is the largest one on the mainland in USA.
A.
Hawaii,Texas
B.
Texas, Alaska
C.
Alaska,Texas
D.
Alaska, Florida
【单选题】The team are looking good for a shot at the title.
A.
the act of trying to do or achieve sth
B.
the action of kicking the ball
C.
a scene in a film
D.
fire a gun
【简答题】A．It is the largest of all the pyramids. B．It is older than other pyramids. C．It took the Egyptian 20 years to finish it. D．It is about 144 meters high.
【简答题】Spring MVC支持多种视图技术，包括【 】、Velocity和FreeMarker等。A. JSP
【单选题】__ is the largest city and the chief port of the United States.
A.
Washington D．C．
B.
Los Angeles
C.
San Francisco
D.
New York City
【单选题】____ is the largest state in the whole United States and ____ is the largest state in the part of the U.S. that is on the mainland.
A.
Rhode Island, California
B.
Alaska, Texas
C.
Texas, Alaska
D.
Alaska, New York
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