单项选择题
A.catchB.tryC.finallyD.throw
A.DisplayStyleB.ImageC.TextD.ImageText
A.ClickB.SelectC.CheckedChangeD.Check
A.IntervalB.EnableC.VisiableD.Run
A.ExecuteNonQuery()B.ExecutQuery()C.ExecuteReader()D.ExecuteScalar()
A.ExecuteNonQuery()B.ExecuteScalar()C.ExecuteReader()D.ExecuteXmlReader()
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微信扫一扫,免费拍照搜题