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数据库中有如下关系: 学生表 student(stuId,stuName,stuAge,stuSex) stuId:;stuName:学生姓名;stuAge:学生年龄;stuSex:学生性别 课程表 Course(courseId,courseName,teacherId) courseId,课程编号;courseName:课程名字;teacherId:教师编号 成绩表 Scores(stuId,courseId,score) stuId:;courseId,课程编号;score:成绩 教师表 Teacher(teacherId,teacherName) teacherId:教师编号; teacherName:教师名字 请完成以下查询 查询各个课程及相应的选修人数
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参考答案：
举一反三
【单选题】Which of the following pair of words is NOT a minimal pair?
A.
put/but
B.
bat/cat
C.
sit/bit
D.
milk/silk
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【单选题】How much money does the man want to exchange?
A.
200 US dollars.
B.
250 US dollars.
C.
300 US dollars.
D.
400 US dollars.
查看完整题目与答案
【简答题】中译英（共5小题；每小题2分，满分10分） 小题1:他是我最爱的羽毛球运动员之一。 小题2:我们都在盼望着这一天的到来。 小题3: Sandy中文说得很好因为她经常练习。 小题4:你能教我如何打排球吗？ 小题5: 吴老师对我们很好。他帮助我们学好数学。
查看完整题目与答案
【单选题】Which shoes did the woman wear home?
A.
The light yellow pair.
B.
The dark red pair.
C.
The old pair.
D.
The first pair she tried on.
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【单选题】Conerning pair production, which of the following is true?
A.
The threshold energy for pair production is 0.51 MeV.
B.
An electron and a positron are produced.
C.
The energy of the incident photon is equal to the sum of the kinetic energies of the pair of particles.
D.
Annihilation produces 1.02 MeV photons.
E.
A pair of electrons is produced.
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【单选题】Which of the following is NOT a pair of additive and subtractive primary colors？
A.
Yellow and blue
B.
Magenta and green
C.
Black and white
D.
Cyan and red
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【单选题】Which of the following terms describes an exchange rate regime in which the government intervenes in the foreign exchange market in order to influence the market determined exchange rate?
A.
Fully convertible
B.
Currency control
C.
Managed float
D.
Clean float
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【简答题】--How do lovers exchange their vows of love on St. Valentine's Day? --Through _____ _____, flowers and _____.
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【单选题】Which shoes did the woman buy?
A.
The second pair she tried on and the dark red pair.
B.
The first pair she tried on.
C.
Only the second pair she tried on.
D.
Only the dark red pair.
查看完整题目与答案
【简答题】补全单词。 1. n__ __th (北) 2. s__ __th (南) 3. w__st (西) 4. __ __st (东) 5. C__ __na (中国)
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相关题目：
【单选题】Which of the following pair of words is NOT a minimal pair?
A.
put/but
B.
bat/cat
C.
sit/bit
D.
milk/silk
查看完整题目与答案
【单选题】How much money does the man want to exchange?
A.
200 US dollars.
B.
250 US dollars.
C.
300 US dollars.
D.
400 US dollars.
查看完整题目与答案
【简答题】中译英（共5小题；每小题2分，满分10分） 小题1:他是我最爱的羽毛球运动员之一。 小题2:我们都在盼望着这一天的到来。 小题3: Sandy中文说得很好因为她经常练习。 小题4:你能教我如何打排球吗？ 小题5: 吴老师对我们很好。他帮助我们学好数学。
查看完整题目与答案
【单选题】Which shoes did the woman wear home?
A.
The light yellow pair.
B.
The dark red pair.
C.
The old pair.
D.
The first pair she tried on.
查看完整题目与答案
【单选题】Conerning pair production, which of the following is true?
A.
The threshold energy for pair production is 0.51 MeV.
B.
An electron and a positron are produced.
C.
The energy of the incident photon is equal to the sum of the kinetic energies of the pair of particles.
D.
Annihilation produces 1.02 MeV photons.
E.
A pair of electrons is produced.
查看完整题目与答案
【单选题】Which of the following is NOT a pair of additive and subtractive primary colors？
A.
Yellow and blue
B.
Magenta and green
C.
Black and white
D.
Cyan and red
查看完整题目与答案
【单选题】Which of the following terms describes an exchange rate regime in which the government intervenes in the foreign exchange market in order to influence the market determined exchange rate?
A.
Fully convertible
B.
Currency control
C.
Managed float
D.
Clean float
查看完整题目与答案
【简答题】--How do lovers exchange their vows of love on St. Valentine's Day? --Through _____ _____, flowers and _____.
查看完整题目与答案
【单选题】Which shoes did the woman buy?
A.
The second pair she tried on and the dark red pair.
B.
The first pair she tried on.
C.
Only the second pair she tried on.
D.
Only the dark red pair.
查看完整题目与答案
【简答题】补全单词。 1. n__ __th (北) 2. s__ __th (南) 3. w__st (西) 4. __ __st (东) 5. C__ __na (中国)
查看完整题目与答案
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