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【C12】A．senseB．conceptC．emotionD．feeling

【C10】A．senseB．abuseC．sacrificeD．exchange

Mr. Karl made his______in the business world entirely on his own.A．readyB．sureC．bestD．way

Before you left, please _____ all the windows are closed.A.sureB.make sureC.certainD.as

SQL语言中 删除一个表的命令是A．DELETEB．DROPC．CLEARD．REMOVE

SQL语句中 彻底删除一个表的命令是()。A.deleteB.dropC.clearD.remore