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【多选题】
语音编码的目的有哪些( )A.
A/D变换
B.
减少信源冗余
C.
压缩语音编码的码速率
D.
提高信源的有效性
拍照语音搜题，微信中搜索"皮皮学"使用
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】---Waiter! How soon can I get my food? I just have half an hour left before my train leaves. --- It ______ be ready in five minutes.
A.
may
B.
should
C.
could D need
【单选题】-- Waiter! How soon can I get my food? I just have half an hour left before my train leaves. -- It ______ be ready in five minutes.
A.
may
B.
should
C.
could
D.
need
【单选题】Waiter: Prince Wales Restaurant. Good morning! Can I help you? Customer: Yes, I would like to book a table for two for tomorrow evening. Waiter: Sure, sir. __________? Customer: Around 6:30.
A.
What time would you like to have your table
B.
When are you coming
C.
What time do you want it
D.
When would you like to come
【简答题】—Waiter! — —I can’t eat this. It’s too salty. A. Yes,sir? B. What? C. Allright? D. Pardon?
【简答题】一Waiter! 一__________? 一I can’t eat this．It’s too salty．
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