The components of the Python identifier include: numbers, letters, and underscores.

• A.True
• B.False

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What are the service categories included in Huawei Cloud El Enterprise Intelligence? (Multiple Choice)

• A.El online games
• B.El industry scene
• C.El speech semantics
• D.El visual cognition

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the trace operation returns the sum of the diagonal elements of the matrix. Therefore, the traces of matrix A and its transposed matrix are equal.

• A.False
• B.True

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For a machine to be intelligent, it must be knowledgeable. Therefore, there is a research field in artificial intelligence, which mainly studies how computers automatically acquire knowledge and skills to achieve self-improvement. This research branch is called?

• A.Machine learning
• B.Natural language processing
• C.Expert system
• D.Neural network

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Grid search is a method of parameter adjustment.

• A.TRUE
• B.FALSE

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