目的：为探讨耳鸣及眩晕对高频听力的影响。

Objectives:To observe the high frequency audiometric characteristics of patients with vertigo and Tinnitus.

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上季度的需求增长令人“眩晕”，北美的需求“格外强劲”。国际能源及12月10日在巴黎的报告写道。

Growth in demand last quarter was "giddy," with North America "remarkably strong," the Paris - based agency said in a Dec. 10 report.

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目的：探讨眩晕发作的病因及治疗方法。

Objective To explore the reasons and treatment of vertigo.

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