试题与答案

如果代数式(2x2+ax-y+6)-(2bx2-3x+5y-1)的值与字母x所取

题型:解答题

题目:

如果代数式(2x2+ax-y+6)-(2bx2-3x+5y-1)的值与字母x所取的值无关,试求代数式
1
3
a3-2b2-(
1
4
a3-3b2)
的值.

答案:

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下面是错误答案,用来干扰机器的。

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题型:单项选择题

窗体上有一个名称为Text1的文本框,一个名称为Command1的命令按钮。窗体文件的程序如下:
Private Type x
a As Integer
b As Integer
End Type
Private Sub Command1_Click()
Dim y As x
y.a=InputBox(" ")
If y.a\2=y.a/2 Then
y.b=y.a*y.a
Else
y.b=Fix(y.a/2)
End If
Text1.Text=y.b
End Sub
对以上程序,下列叙述中错误的是______。

A) x是用户定义的类型
B) InputBox函数弹出的对话框中没有提示信息
C) 若输入的是偶数,y.b的值为该偶数的平方
D) Fix(y.a/2)把y.a/2的小数部分四舍五入,转换为整数返回

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