智慧职教: 以下是按商品id删除商品信息的方法，请把程序补充完整： public int delete(long id){        SQLiteDatabase db=helper.getWritableDatabase();        int result=db.delete("account","_id=?",_____________);        db.close();        return  result;    }

对数据库操作完成之后要调用db.close()方法。( )

采用 DAO 完成对"教学管理.mdb"文件中"学生表"的学生年龄都加 1 的操作,程序空白处应填写的语句是 Sub SetAgePlus() Dim ws As DAO.Workspace Dim db As DAO.Database Dim rs As DAO.Recordset Dim fd As DAO.Field Set db = CurrentDb() Set rs = db.OpenRecordset("学生表") Set fd = rs.Fields("年龄") Do While Not rs.EOF ___________ fd = fd + 1 rs.Update rs.MoveNext Loop rs.Close db.Close Set rs = Nothing Set db = Nothing End Sub

The air-conditioner is running in the winter and to be stopped, we should（） A: close Fan and Humidifier at the same time B: firstly close Fan and then close humidifier immediately C: firstly close humidifier and then close Fan immediately D: firstly close humidifier and then close Fan after 30 second

But American friends may not be close, or they are close with ______ .

下面正确的关闭文件的语句格式是( ) A: close(变量名) B: .close() C: close(文件名) D: .close

I wanted so much to_________ my store and go traveling in the heated summer. A: close on B: close in C: close up D: close to

某拟建企业厂界与界外居民楼测点背景噪声值为55dB()、53dB(),预测投产后两处测点的噪声贡献值分别为55dB()、53dB(),厂界和居民楼处噪声预测值分别为(A)。A.58 dB(A)、56 dB(A)B.55 dB(A)、53 dB(A)C.55 dB(A)、56 dB(A)D.58 dB(A)、53 dB(A) A: 58 dB(A)、56 dB(A) B: 55 dB(A)、53 dB(A) C: 55 dB(A)、56 dB(A) D: 58 dB(A)、53 dB(A)

My ________ friend lives _________ to the zoo. A: close; closed B: closely; closed C: closed; closely D: close; close

According to WHO the normal hearing is ______. ( ) A: 10-20 dB B: 0-20 dB C: 0-25 dB D: 10-25 dB