考题
--Must we finish our homework now? --No, you ______. You _______ finish it after school.
A.needn't , mayB.mustn't , mayC.can't , canD.needn't , must
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Tom: You are playing guitar well. Can you read music? Charles: No, I don't. I just listen to songs on the radio and then play them until they sound right. Tom: ______ Charles: No, really.A.You're lyingB.You're cheatingC.You are boastingD.You're kidding
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-Mayweleavetheclassroomnow?-No,you______.You______toleaveuntilthebellrings.A.mustn’t,areallowedB.don’thaveto,aresupposedC.needn’t,aren’tallowedD.can’t,aren’tsupposed
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I______to be a scientist when I______ a boy.A、wanted, wasB、want, amC、wanted, amD、want, was
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Which statement about the enabling of table compression in Oracle Database 11g is true?()
A. Compression can be enabled at the table, tablespace, or partition level for direct loads only.B. Compression can be enabled only at the table level for both direct loads and conventional DML.C. Compression can be enabled at the table, tablespace, or partition level for conventional DML only.D. Compression can be enabled at the table, tablespace, or partition level for both direct loads and conventional DML.
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Thewarninglevelthresholdvalueforatablespace,EXECUTEDBMS_SERVER_ALERT.SET_THRESHOLD(dbms_server_alert.tablespace_pct_full,dbms_server_alert.operator_ge,80,dbms_server_alert.operator_ge,90,1,1,NULL,dbms_server_alert.object_type_tablespace,’DATA’);Whatwillbetheresultofthecommand?()
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若要对Data类中重载的加法运算符成员函数进行声明,下列选项中正确的是( )。 A.Data+(DatA.;SXB
若要对Data类中重载的加法运算符成员函数进行声明,下列选项中正确的是( )。A.Data+(DatA.;B.Data operator+(DatA.;C.Data+operator(DatA.;D.operator+(Data,DatA.;
考题
Your data recovery strategy must meet the following requirements:·Back up all data files and folders in C:\Data.·Restore individual files and folders in C:\Data.·Ensure that data is backed up to and restored from external media.What should you do?()A.AB.BC.CD.D
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You like playing football,()you?AdoBdidn‘tCdidDdon‘t
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shanchu对于Set接口,求两集合的交集的方法()。A.retainAll()B.containsAll()C.contains()D.retain()