问题
单项选择题 A1/A2型题
饮大量清水后尿量增多的主要原因是（）
A.肾小球滤过率增加
B.血浆胶体渗透压增高
C.ADH分泌减少
D.醛固酮分泌减少
E.肾小球囊内压下降
答案
参考答案：C
解析：
这种情况叫水利尿，大量饮水后体液被稀释，血浆胶体渗透压降低，血容量增加，引起抗利尿激素（ADH）分泌减少，致使肾远曲小管和集合管对水的重吸收减少，尿量增加。
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饮大量清水后尿量增多的主要原因是（）
A.肾小球滤过率增加
B.血浆胶体渗透压增高
C.ADH分泌减少
D.醛固酮分泌减少
E.肾小球囊内压下降
参考答案：C
解析：
这种情况叫水利尿，大量饮水后体液被稀释，血浆胶体渗透压降低，血容量增加，引起抗利尿激素（ADH）分泌减少，致使肾远曲小管和集合管对水的重吸收减少，尿量增加。
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| In front of my daughter Sindu, was a bowl filled with cabbage. She hated cabbage. She only sat there in silence with tears 1 her eyes. "Sindu, darling, why don't you 2 a little? Your mom will shout at me." Sindu wiped (擦) her 3 with the back of her hand. "OK, Dad. I'll eat, just a little." Then Sindu said, "Dad, if I eat it all, will you give me 4 I want?" "Yes, within reason." 5 she began to eat. It took her almost half an hour to finish the 6 Then she came up to me and said, "Dad, I want to have my head shaved (刮、剃)!" "Sindu, why don't you 7 something else? If we see you with a clean-shaven head, we will be 8 ," I said. "But, Dad, you promised! Now, you are going back on your words." I had to 9 my promise. Sindu had all her hair cut off. She looked beautiful. On Monday morning, I took her to school. 10 when we arrived, a boy got out of a car, and shouted," Sindu, please wait for me!" Guess what? The boy had 11 hair either. "Sir, your daughter is 12 !" a man got out of the car and said. "That boy is my son, Harish. He has cancer. He lost his hair 13 he got ill. Sindu cut hers off so Harish felt less 14 She's a special girl." I stood for a while, "My little girl, you 15 me how selfless (无私的) real love is!" | ||||
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