在ATM信元头的格式中,GFC、VPI、VCI、PTI、CLP、HEC这些符号的含义是什么?
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Given classes defined in two different files: 1. package util; 2. public class BitUtils { 3. private static void process(byte[] b) { } 4. } 1. package app; 2. public class SomeApp { 3. public static void main(String[] args) { 4. byte[] bytes = new byte[256]; 5. // insert code here 6. } 7. } What is required at line 5 in class SomeApp to use the process method of BitUtils?()
A. process(bytes);
BitUtils.process(bytes);
C. app.BitUtils.process(bytes);
D. util.BitUtils.process(bytes);
E. import util.BitUtils. *; process(bytes);
F. SomeApp cannot use the process method in BitUtils.
锁相环是由鉴相器()低通滤波器三大部件组成.
A. 压控振荡器
B. 分频器
C. 译码器