问题
单项选择题
呋塞米的利尿作用是由于
A．抑制肾脏的稀释功能
B．抑制肾脏的浓缩功能
C．抑制肾脏的稀释和浓缩功能
D．对抗醛固酮的作用
E．阻滞Na+重吸收
答案
参考答案：C
解析：
呋塞米的利尿作用是抑制Na+- K+-2Cl-共同转运载体，降低肾对尿液的稀释和浓缩功能。
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呋塞米的利尿作用是由于
A．抑制肾脏的稀释功能
B．抑制肾脏的浓缩功能
C．抑制肾脏的稀释和浓缩功能
D．对抗醛固酮的作用
E．阻滞Na+重吸收
参考答案：C
解析：
呋塞米的利尿作用是抑制Na+- K+-2Cl-共同转运载体，降低肾对尿液的稀释和浓缩功能。
Our English teacher was like a friend to us，and we all liked her．One day she came into the classroom and shouted．“Who did this?”She held up a piece of broken glass and asked，“Who __1__ the window?”She seldom became angry, __2__ this time she was． I broke the window．I had done __3__ by throwing a baseball．I didn’t want to admit(承认) It __4__ I didn’t have enough money to pay for a big window like that．“My father will be __5__,”I thought．At first I didn’t _6_ my hand，but later something strong in my heart suddenly made me stand up.“I did it，”I said __7_．How difficult it was for me to say that! My teacher __8__ a book from one of our book shelves and then began walking __9_ my desk. I was afraid that she was going to punish(惩罚)me． “I know you like collecting __10__ very much，”she said，looking down at my __11__ face. “Here is the hook about collecting stamps that you are looking for．Now，the book is__12__ and I shall not punish you．Remember，it’s because you _13_ the truth．” I couldn’t believe it ! My teacher wasn’t punishing me．I didn’t _14_ to pay for the broken window. And I got my favorite book! As time goes, the book is _15_，so is my wonderful teacher．But I will never forget the lesson the teacher gave me that day．
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