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【简答题】
A．Because of the application of new technology and methods. B．Because of farmer's intelligence and luck. C．Because of the increase in agriculture export. D．Because of the increase in agriculture import.
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反馈参考答案：
举一反三
【简答题】简述上纵隔的分层 及其 主要 结构 。
【多选题】Which two statements are true about the digital audio in a VoIP network？（）
A.
Standard encoding techniques create an uncompressed digital data rate of 4000 bps.
B.
Standard encoding techniques create an uncompressed digital data rate of 8000 bps.
C.
Standard encoding techniques create an uncompressed digital data rate of 64，000 bps.
D.
Voice quality is not a concern if compression is not used.
E.
Two methods of quantization are linear and logarithmic.
F.
Two methods of compression are u-law and a-law.
【单选题】A voice ____ converts digital text into audio output.
A.
signal
B.
synthesizer
C.
emulator
D.
creator
【单选题】Digital audio is music, speech, and other sounds represented in ____ format for use in digital devices.
A.
analog
B.
binary
C.
both a. and b.
D.
neither a. nor b.
【单选题】The meaning of digital audio workstation is _____
A.
数字音频工作站
B.
数字视频工作站
C.
数字调色工作站
D.
数字特效工作站
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