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【单选题】
Listen to a talk about family farming and choose the best answer to each of the following questions. [音频] What did Mike do after he got his 's degree?
A.
He took a job with a big agricultural business.
B.
He bought his own farm and worked on it.
C.
He started to pursue his doctor's degree in agricultural business management.
D.
He went back to work together with his father on their farm.
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A.
DDN
B.
帧中继
C.
X.25
D.
ADSL
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【判断题】音频码率也称比特率。
A.
正确
B.
错误
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【单选题】音频中的浊音是?
A.
で だ ば
B.
て ば だ
C.
た ば た
D.
で は ば
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【单选题】从MPEG标准中抽取的音频格式是( )。
A.
WMA
B.
CD
C.
WAV
D.
MP3
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【单选题】[音频] question 12: What is the best thing about iPads according to the couple?
A.
They ma k e f or exce 11 ent entertamment.
B.
They are useful for the annual family vacat10n.
C.
They keep children at different age levels occupied.
D.
The y are helpful when going to the grocery store.
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【单选题】[音频] I ’ m in a very bad ()
A.
mood
B.
mold
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A.
Animal bones.
B.
Iron blades(刀刃).
C.
Steel blades.
D.
Wooden blades.
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【简答题】音频的频率大约范围是 ( )。A.0—4kHz。B.0—10kHz。C.20—20kHzD.20k—20MHz。
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【多选题】声卡也称音频卡,是处理音频信号的计算机插卡。目前声卡大致可分以下哪几类()?
A.
ISA声卡
B.
PCI声卡
C.
软声卡
D.
SB系列卡
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