PTT信号在语音通信交换系统内部是当成（）信号进行处理的。
A. 语音信号
B. 电话信号
C. 告警信号
D. 控制信号
查看答案
Customers looking to utilize quad-core processors in a blade environment should use which of the following power saving options？（）
A. IBM HS21 - Quad-core processor designed for 4-way servers
B. IBM x3850 Server - Quad-core LV processors
C. IBM LS41 - Quad-core processor designed for 4-way servers
D. IBM HS21 - Quad-core LV processor
一台DG140/5.3-1的锅炉的安全阀的合计排放量应不小于（）T/H。
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