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  3. Leptin is effective in reducing weight but it’s many years away before humans ca

Leptin is effective in reducing weight but it’s many years away before humans ca

游客2023-07-12  34
问题 Leptin is effective in reducing weight but it’s many years away before humans can use it. [br] Leptin, after being approved by health authorities, will be available to people in need through doctors’ prescriptions.
选项 A、Y
B、N
C、NG
答案 C
解析 由文章第一段“．．．it could be five to ten years．．．leptin is approved．．．for human use． Researchers must．．．no serious side effects”可知，人们一直在担忧leptin的副作用，而且文中并没有提到即使将来经权威部门审批之后，会如何使用leptin的问题。
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