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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
9
管理
问题
Leptin is effective in reducing weight but it’s many years away before humans can use it. [br] The ob gene causes the fat cells to produce the hormone leptin. The fatter, the more hormones are produced.
选项
A、Y
B、N
C、NG
答案
A
解析
由文章第五段第一句“Because leptin is produced in fat tissue,the fatter an animal is,the more leptin its cells should make”可知,leptin是由脂肪细胞分泌的,老鼠越胖,分泌的leptin越多。文中用了protein(第四段第一句)和hormone(第四段第三句)来指leptin。
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