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【单选题】
产品上架后,新品培养的基本流程正确的是( ) 1 优化资料图 片,可按销售 情况调整价格。 2 利用Sponsored Products 付费广告 引流。 3做Promotion 降价促销 4 可发少量商 品去做亚马逊物 流测试效果。 5 在产品有一定销量后,可添 加不同颜色或规格的变体。为消 提供更多选择,吸引消 注意,引导流量。 6最大化买家 评论、增加购买 转化率和提高 Listing排名。A.
①②③ ④⑤⑥
B.
①③ ② ⑤⑥ ④
C.
② ④⑤ ① ③ ⑥
D.
③ ② ① ④⑤⑥
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举一反三
【多选题】Which two statements are true about og to digital conversion of voice signals for use in digital telephony networks？ （）
A.
The three required steps in the og to digital conversion are sampling， encoding， and compression.
B.
The three required steps in the og to digital conversion are sampling， quantization， and compression.
C.
The three required steps in the og to digital conversion are sampling， quantization， and encoding.
D.
The output of the sampling process is a pulse code modulation （PCM） signal.
E.
The output of the sampling process is a pulse amplitude modulation （PAM） signal.
【单选题】________ or voice-input devices accept spoken words through a microphone and change the sounds into computer readable signals.
A.
Speech-recognition
B.
Sensor
C.
Sanner
D.
Printer
【判断题】Sweating, twitches of muscles, and changes in voice tone are signals of anxiety.
A.
正确
B.
错误
【简答题】What is the emission designation for MF/HF voice signals?A. FIB. B. J3E. C. J2B. D. F3E.
【单选题】Distress signals may be（）.
A.
red flares
B.
smoke signals
C.
sound signals
D.
Any of the above
【简答题】Telephone-quality og voice signals
【单选题】The telephone contains a transmitter and receiver for converting back and forth og voice and og electrical signals.
A.
in
B.
between
C.
to
D.
into
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