Examine the structure of the STUDENTS table:You need to create a report of the 10 students who achieved the highest ranking in the course INT SQL and who completed the course in the year 1999.Which SQL statement accomplishes this task?（）A.B.C.D.
Examine the structure of the STUDENTS table:You need to create a report of the 10 students who achieved the highest ranking in the course INT SQL and who completed the course in the year 1999.Which SQL statement accomplishes this task?（）
A.
B.
C.
D.
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Students: Professor Lance, your lecture on cloning is very interesting！Professor: .Are you a student of biology?Students: No, I major in chemistry.A． I think soB． I'm glad to hear thatC． It must beD． It's not so interesting
下面关于的视图管理的语句不正确的是:() A.CREATEVIEWview_students_computerASSELECT*FROMstudentsWHEREdept='计算机技术';B.CREATEORREPLACEVIEWview_students_computerASSELECT*FROMstudentsWHEREdept='计算机技术';C.UPDATEVIEWview_students_computerASSELECT*FROMstudentsWHEREdept='计算机技术';D.ALTERVIEWview_students_computerASSELECT*FROMstudentsWHEREdept='计算机技术';
Teaching activities must be based on the students' cognitive development level and the existing experienced knowledge, thus, students' personal knowledge, students' life world and are also the important curriculum resources except textbook．A.game activitiesB.labour activitiesC.attitudeD.direct experience
Teaching activities must be based on the students' cognitive development level and theexistingexperiencedknowledge,thus,students'personal knowledge,students'Lifeworld and__________ are also the important curriculum resources except textbook.A．game activitiesB．labour activitiesC．attitudesD．direct experience
Teaching activities must be based on the students' cognitive development level and the existing experienced knowledge, thus, students' personal knowledge, students' life world and__________ are also the important curriculum resources except textbook.A．game activitiesB．labour activitiesC．attitudeD．direct experience
声明并创建一个学生类Student的对象s，下列语法格式正确的是（）。A．Student s = Student();B．Student s;C．Student s = new Student();D．Student s = new ();
创建students对象，_______语句可以选出第二个同学的身高。 students数据如下： age height weight 1 19 170 68 2 20 165 65 3 18 175 65A．students[1,'height']B．students.loc[2,'height']C．students.iloc[1, 1]D．students['height'][3]
【单选题】查询成绩在60-80之间的学生信息，正确的语句是？A．db.students.find({"score":{$gte:60,$lte:80}})B．db.students.find({"score":{$gte:80},{"score":{$lte:60}}})C．db.students.find({"score":{$gte:60},{"score":{$te:80}}})D．db.students.find({"score":{$gt:80},{"score":{$lt:60}}})
【单选题】按照年龄的升序显示学生信息，正确的命令是？A．db.students.find().sort({"age":1})B．db.students.find().sort({"age":-1})C．db.students.find().sort("age")D．db.students.find().sort({"age":"asc"})
创建students对象，_______语句可以选出第二个同学的身高。 students数据如下： age height weight 1 19 170 68 2 20 165 65 3 18 175 65A．students.loc[2,'height']B．students.iloc[1, 1]C．students[1,'height']D．students['height'][3]