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[音频]In addition to a few symbolic gifts, most products are considered suitablepresents by Americans. They like to say that it is not the kind of gift that matters, butthe thought is 1 counts. Traditional 2 occasions are: weddings, 3 ,Christmas, and anniversaries, etc. You are expected to choose a gift for your romanticpartner on your 6-month or yearly anniversaries. If you 4 , she/he might decide toforget about you.

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[音频]Tom:IamwonderingwhattogivetoourforeignteacherMr.Nortonas _1whenIgotohishomethisSaturdayevening.Rachel:Mm,howaboutsomethingtoeatordrink?Tom:Yeah,Icangivehimabottleofhardliquor.Rachel:Oh,no.Youmustbecarefulingiving_2_. DoyouknowwhatMr.Nortondrinksusually?Tom:No,Idon’t.Howaboutsomeflowers?Everyonelikesthem.Icanget someroses…Rachel:RosesarecertainlynotforMr.Norton!Theyarefor_3_.Tom:Youareright!ButwhatcanIgivehim.Rachel:Perhaps _4_ wouldbenice.Tom:Right!I’llgive_5___ toMr.Norton.Thankyousomuch!Rachel:Mypleasure.

从Grade成绩表中对学号尾号为2的学生加两分，以下操作正确的是：

A. UPDATE GradeSET Grade = Grade + 1WHERE StudentID LIKE '%1'
B. UPDATE GradeSET Grade = Grade + 2WHERE StudentID LIKE '%2'
C. UPDATE GradeSET Grade = Grade + 2WHERE StudentID = '%2'
D. UPDATE GradeSET Grade = Grade + 2WHERE StudentID != '%1'

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以下哪些操作会改变数据库的内容：

A. 插入
B. 更新
C. 删除
D. 查询

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向Student学生表中插入一条学生信息，以下操作正确的是：

A. INSERT INTO Student(StudentID,StudentName,Sex,Birth,HomeAddr,EntranceTime,ClassID)VALUES('St0210010007','李正华','男','1992-8-20','成都市都江堰迎宾大道341号','2010-09-12','Cs021001')
B. INSERT INTO Student(StudentID,StudentName,Sex,Birth,HomeAddr,EntranceTime)VALUES('St0210010007','李正华','男','1992-8-20','成都市都江堰迎宾大道341号','2010-09-12')
C. INSERT INTO Student(StudentID,StudentName,Sex,Birth,HomeAddr)VALUES('St0210010007','李正华','男','1992-8-20','成都市都江堰迎宾大道341号')
D. INSERT INTO Student(StudentID,StudentName,Sex,Birth)VALUES('St0210010007','李正华','男','1992-8-20')

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