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【单选题】
人们说话所产生的语音信息必须经过数字化之后才能由计算机进行存储和处理。语音信号的带宽通常为300-3400Hz，经过数字化之后每秒钟产生的数据量(未压缩时)大约是(62)。A.
4KB
B.
8KB
C.
32KB
D.
64KB
拍照语音搜题，微信中搜索"皮皮学"使用
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He wanted to make service an artistic work.
B.
He wanted to feel the impact of good service.
C.
He wanted to revive the spirit of service.
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He wanted to treat customers in an artistic way.
【简答题】将下列词语与图片匹配
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