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【简答题】
Revise the following paragraph. Change the informal language to formal language. Informal: We see a rise in the expectations to do research for university faculty in the past 50 years or so. Many universities assess their faculty’s performance based on their productivity in research. They also use this as perhaps the only criterion for hiring, tenure, and promotion. A few factors cause this, such as the universities’ stronger dependence on research funding to support the basic running of universities, the strong desire of their administrators and faculty members for wanting to rank highly internationally.
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【单选题】习近平总书记指出: “ 中国的命运与世界的命运紧密相关。我们要把弘扬爱国主义精神与扩大对外开放结合进来,尊重各国的历史特点、文化传统,尊重各国人民选择的发展道路,善于从不同文明中寻求智慧、汲取营养,增强中华文明生机活力。 ” 这表明新时代的爱国主义( )。
A.
坚持立足本民族又面向世界
B.
尊重和传承中华民族历史和文化
C.
坚持爱国主义和社会主义相统一
D.
维护祖国统一和民族团结
【单选题】检索选修四门以上课程的学生总成绩(不统计不及格的课程)，并要求按总成绩的降序排列出来。正确的SELECT语句是______。
A.
SELECT S#, SUM(GRADE) FROM SC WHERE GRADE＞=60 GROUP BY S# ORDER BY 2 DESC HAVING COUNT(*)＞=4
B.
SELECT S#, SUM(GRADE) FROM SC WHERE GRADE＞=60 GROUP BY S# HAVING COUNT(*)＞=4 ORDER BY 2 DESC
C.
SELECT S#, SUM(GRADE) FROM SC WHERE GRADE＞=60 HAVING COUNT(*)＞=4 GROUP BY S# ORDER BY 2 DESC
D.
SELECT S#, SUM(GRADE)FROM SC WHERE GRADE＞=60 ORDER BY 2 DESC GROUP BY S# HAVING COUNT(*)＞=4
【单选题】检索选修四门以上课程的学生总成绩(不统计不及格的课程)，并要求按总成绩降序排列出来，正确的SELECT语句是______。
A.
SELECT S#,SUM(GRADE)FROM SC WHERE GRADE＞=60 CROUP BY S# ORDER BY 2 DESC HAVING COUNT(*)＞=4
B.
SELECT S#,SUM(GRADE)FROM SC WHERE GRADE＞=60 GROUP BY S# HAVING COUNT(*)＞=4 ORDER BY 2 DESC
C.
SELECT S#,SUM(GRADE)FROM SC WHERE GRADE＞=60 HAVING COUNT(*)＞=4 GROUP BY S# ORDER BY 2 DESC
D.
DELECT S#,SUM(GRADＥ)FROM SC WHERE GRADE＞=60 ORDER BY 2 DESC CROUP BY S# HAVING COUNT(*)＞=4
【简答题】6-14 当使用鼠标点击一个万维网文档是,若该文档出来有文本外,还有一个本地 .gif 图像和两个远地 .gif 图像。试问;需要使用那个应用程序,以及需要建立几次 UDP 连接和几次 TCP 连接?
【单选题】检索选修四门以上课程的学生总成绩，并要求按总成绩的降序排列出来。正确的SELECT语句是()。
A.
SELECT SNO, SUM (GRADE) FROM SC GROUP BY SNO ORDER BY 2 DESC HAVING COUNT(*) >= 4;
B.
SELECT SNO, SUM (GRADE) FROM SC GROUP BY SNO HAVING COUNT(*)>=4 ORDER BY 2 DESC;
C.
SELECT SNO, SUM (GRADE) FROM SC HAVING COUNT(*)>=4 GROUP BY SNO ORDER BY 2 DESC;
D.
SELECT SNO, SUM (GRADE) FROM SC ORDER BY 2 DESC GROUP BY SNO HAVING COUNT(*)>=4;
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