单选题：Leptin __________.

题目分类：卫生类
题目类型：单选题
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题目内容：

Leptin __________. A．refers to a new biochemical pathway in the brain that controls appetite
B．raises new prospects for developing slimming drugs
C．is a hormone produced in fatty tissue for controlling fat build-up
D．has turned to a breakthrough in the search for effective slimming drug

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分类：卫生类题型：单选题

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分类：卫生类题型：单选题

根据以下材料，回答题TatooJack's friend Tony had recently gotten a tato

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分类：卫生类题型：单选题