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问题 单项选择题

业余条件下，不一定具备测量信噪比参数的仪表，尤其是业余使用的测向机，对信号的音质没有严格的要求，所以经常用（）来代替“灵敏度”作为互相比较的依据。

A.高灵敏度

B.清晰度

C.可听灵敏度

答案

参考答案：C

改错题

注意：1，每处错误及其修改均仅限一词；

2，只允许修改10处，多者（从第11处起）不计分

Dear Mary,

I receive your E-mail just now. Don’t worry about me. I’m getting on well with my research work in the lab. But to my greatly surprise you say you will give up learn English. The reason is because you have not done well in it recently and you have lost interests. I’m afraid I couldn’t agree with you . I know it is difficulty to learn English, and English is widely used in the world today. It will be important tool in our future work. Beside, it is becoming more and more important in our daily life. If you study hard, you will be succeed. Do remember that where there is a will, there is a way. I’ m looking forward to hearing good news from you.

Yours,

Li Hua
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填空题

在窗体上画1个名称为Commandl的命令按钮和2个名称分别为Text1、Text2的文本框，如下图所示，然后编写如下程序；


Function Fun(x As Integer,ByVhly As Inmgcr)As Integer
X=K+y
If x＜0 Then
Fun=x
Else
Fun=y
End If
End Function
Private Sub Cornmandl_Click()
Dima As Integer,b As Integer
a=-10:b=5
Tcxt1,Text=Fun(a,b)
Text2,Text=Fun(a,b)
End Sub
程序运行后，单击命令按钮，Text1和Text2文本框显示的内容分别是上 [14] 和 [15] 。
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