Maths are very difficult to learn.() 此题为判断题(对，错)。
Maths are very difficult to learn.()
此题为判断题(对，错)。
相关考题：
设有关系模式：student(sno, sname, age, dept)，现利用命令： CREATE VIEW stu AS SELECT *FROM student WHERE dept="cs"WITH CHECK OPTION 创建了一个视图。则以下SQl命令中能正确执行的是A．UPDATE stu SET dept="maths"B．UPDATE stu SET dept="maths"WHERE age＞=20C．INSERT INTO stu VALUES ("2004001", "John", 30, "cs")D．INSERT INTO stu VALUES ("2004001", "John", 50, "maths")
查询选修了课程号为“MATHS”的学生的姓名和年龄，若用下列SQL的SELECT语句表达时，错误的是（ ）。A) SELECT SNAME,AGE FROM S WHERE S. S# =(SELECT SC． S# FROM SC WHEREc.c# ='MATHS ')B ) SELECT SNAME, AGE FROM S WHERE S. S# =(SELECT SC． S# FROM SC WHERESC． C# =' MATHS ')C) SELECT SNAME, AGE FROM S, SC WHERE S. S# =SC． S# AND SC． C# ='MATHS'ORDER BY S. S#D)SELECT SNAME, AGE FROM S, SC WHERE S. S# =SC． S# AND SC． C# ='MATHS'
This sentence is () difficult () few of the students can understand it. A、too…toB、very, thatC、so, thatD、such, that
设有关系模式：student (sno，sname，age，dept)，现利用命令： CREATE VIEW stu AS SELECT*FROM student WHERE dept="cs"WITH CHECK OPTION 创建了一个视图。则以下SQL命令中能正确执行的是( )。A．UPDATE stu SET dept="maths"B．UPDATE stu SET dept="maths" WHERE age＞=20C．INSERT INTO stu VALUES("2004001","John",30,"cs")D．INSERT INTO stu VALUES("2004001","John",50,"maths")
设有关系模式：student(sno，same，age，dept)，现利用命令：CREATE VIEWStu ASSELECT*FROMStudent WHERE dept=“cs”WITHCHECK OPTION创建一个视图。则以下SQL命令中能正确执行的是A． UPDATEStuSET dept=“maths”B．UPDATEStuSET dept=“maths”WHEREage=20C．INSERT INTOStu VALUES(“2004001”，“John”，30，“cs”)D．INSERT INTOStu VALUES(“2004001”，“John”，50，“maths”)
设有关系模式：student(sno，sname，age，dept)，现利用命令： CREATE VIEW stu AS SELECT * FROM student WHERE dept="cs"WITH CHECK OPTION创建了一个视图。则以下SQL命令中能正确执行的是( )。A．UPDATE stu SET dept="maths"B．UPDATE stu SET dept="maths"WHERE age＞=20C．INSERT INTO stu VALUES("2004001"，"John"，30，"CS")D．INSERT INTO stu VALUES("200400l","John"，50，"maths")
25． The passage can most probably be found in a ________ book．A． scienceB． historyC． travelD． maths
Is English a compulsory subject in primary schools?A:necessary B:significantC:obligatory D:difficult
2、2.已知字典a={‘English’:67,’Maths’:70,’Basketball’:76}，则执行指令“a.get（‘Maths’,False)”的返回结果为________；执行指令“a.items（)”的返回结果为___；执行指令“a.pop（‘Maths’)”的返回结果为_______。