在RMON中，实现捕获组（Capture）时必须实现（）。 A: 事件组（Event） B: 过滤组（Filter） C: 警报组（Alarm） D: 主机组（Host）

The alarm management mode of DVR (non-manual alarm) includes ( ) A: External contact alarm mode B: External API alarm mode C: VMD alarm mode D: Timing alarm mode

______ , she went back to sleep. A: There was no cause for alarm B: There being no cause for alarm C: Without having cause for alarm D: Being no cause for alarm

______, she went back to sleep. A: There is no cause for alarm B: Being no cause for alarm C: There being no cause for alarm D: Without having cause for alarm

What kind of filter is used to extract a single-freq. harmonic from the harmonic components contained in square wave? A: Low-pass Filter B: High-pass Filter C: Band-pass Filter D: Band-elimination Filter

We can employ the next filters to detect edges from an image: A: Roberts filter B: Sobel filter C: mean filter D: Gaussian filter

The filter [img=142x47]18031c9cd67f894.png[/img] is a lowpass filter

下列关于Filter的描述中，正确的是 （）。 A: Filter只能过滤页面 B: Filter只能过滤Servlet C: Filter程序必须实现Filter接口 D: 一个web应用只能注册一个Filte

filter ____

在一个Filter中，处理filter业务的是（）方法