What is not an acoustic feature of speech?

• A.Duration
• B.Frequency
• C.Semantics
• D.Amplitude

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We usually say 720P video format, what does 720 stand for

• A.Width of image resolution
• B.Video
• C.Image resolution brightness
• D.Video gray level

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Huawei Cloud EI Enterprise Intelligence provides a variety of convenient and efficient services. What is the correct process for users to use the services?

• A.Apply for service-obtain request authentication-call API-view service usage information
• B.Obtain request authentication-apply for service-call API-view service usage information
• C.Apply for service-call API-get request authentication-view service usage information
• D.Obtain request authentication-apply for service-view service usage information-call API

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Named entity recognition refers to recognizing entities with specific meaning in text.

• A.Organization name
• B.Name
• C.Date
• D.Place name
• E.Time

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Through the image algorithm, the foreground and background of a person who takes a picture taken by an ordinary mobile phone are segmented, and then the () operation is performed on the () part, which can achieve the same effect as a SLR camera.

• A.Background, mean filtering
• B.Background, median filtering
• C.Foreground, median filter value
• D.Foreground, mean filtering

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