题目内容

请简要说明市场分割理论的观点。

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The root hidr/o pertains to_____________.

A. tears
B. saliva
C. blood
D. sweat

Onychomycosis is a fungal infection of a(n)_____________.

A. eyelid
B. nail
C. hair
D. bone

The adjective cutaneous refers to the ____.

Schizonychia is splitting of a(n) ____.

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