To demonstrate the effect of menu structure on auditory menu system, two kinds of auditory menu structure with different depth and span were designed to gain a greater understanding of menu structure.

为了考察菜单结构对语音菜单系统操作绩效的影响，研究设计了两种具有不同深度、广度的语音菜单结构，并比较两种不同的菜单结构下语音菜单系统操作绩效的差异。

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