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问题 名词解释

卡哈切迹

答案

参考答案：卡哈切迹 耳硬化症中期时，骨导基本正常，可表现为0．5—2kHz不同程度下降，但4kHz接近正常，称为卡哈切迹。

单项选择题

在窗体上画一个名称为Command1的命令按钮和一个名称为Tcxt1的文本框，然后编写如下程序：Private Sub Command1_ Click Dim x, y, z As Integer x = 5: y = 7: z =0 Text1. Text = " " Call p1(x, y, z) Text1.Text = Str (z)End SubPrivate Sub p1(ByVal a As Integer, ByVal b As Integer, c As Integer) c = a+ bEnd Sub程序运行后，如果单击命令按钮，则在文本框中显示的内容是______。

A．0

B．12

C．Str(

D．没有显示
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单项选择题

The existing terrestrial radio system has a number of basic flaws which（）.

A.can be overcome by using traditional techniques

B.can not be overcome by satellite system

C.can be overcome by satellite and digital techniques

D.can not be tackled by any modern system
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