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Her commitment to improve the welfare of children across the world was intense and genuine. This commitment earned her the Presidential Medal of Freedom and the Award from the Congress on Racial Equality. Soon after her trip to Somalia in 1991, Hepburn __ colon cancer. In 1993, Audrey Hepburn died at the age of 63.

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葡萄糖的重吸收与下列哪种离子相伴联()

A. K+
B. Ca2+
Cl-
D. Na+

远曲小管和集合管对水的重吸收主要受()的调节。

A. 抗利尿激素
B. 醛固酮
C. 糖皮质激素
D. 血管紧张素

下列结构中 ,可感受小管液中的 Na+ 量的变化的是 ( )

A.近球细胞
B. 间质细胞
C. 近端小管上皮细胞
D. 致密斑

在水的重吸收部位中,接受ADH调节的是()

A. 近球细胞
B. 髓袢降支
C. 髓袢升支
D. 远曲小管和集合管