下列关于抗利尿激素作用的描述，正确的是A．提高近端小管对水的通透性 B．大剂量可使血 发布时间：2017-12-27 16:39 │ 来源：www.tikuol.com 题型：多项选择题 问题： 下列关于抗利尿激素作用的描述，正确的是A．提高近端小管对水的通透性B．大剂量可使血管收缩、血压升高C．在尿的浓缩和稀释中起关键作用D．增加髓袢升支粗段对NaCl的重吸收
题型：多项选择题 完形填空。 Two years ago, Martin was a "problem child" and he often caused a lot of 1 . But he didn't usually givehis mother much trouble. However, after his father's death, Martin's life became much more 2 . His motherdidn't have enough money to 3 for his education. To do this, she had to work hard, and so she was not often 4 with him. His mother looked after him as 5 as she could, but Martin still caused problems. He was interestedin 6 and he was often in trouble with the police. Luckily, his mother was very patient (有耐心的), and didn't give up trying to help him. In the 7 , she made a difficult decision: to send him to a boy's boardingschool (寄宿学校). But Martin 8 it very much. One day, he told his headteacher he wanted to leave the 9 . The headteacher said it was necessary for Martin to talk with his 10 . So Martin called his mother. To his surprise, this phone call changed his life." 11 was really what I needed," he said later. "My mother helped me to understand how much she had given me. She also told me that my father was watching me, 12 he had died, and he would always be proud of everything good I did. I realized that after my father died, I was 13 to be alone, and I tried to make my mother pay more attention (注意) to me." Martin has really changed. And he is now a 14 student in his class. How was he able to change? His mother's love helped 15 to feel good about himself. As Martin says it's very important for parents to bethere for their children. ( )1. A. fire ( )2. A. careful ( )3. A. pay ( )4. A. at home ( )5. A. fast ( )6. A. eating ( )7. A. end ( )8. A. improved ( )9. A. room ( )10. A. mother ( )11. A. I ( )12. A. if ( )13. A. nice ( )14. A. bad ( )15. A. it B. trouble B. beautiful B. ask B. at school B. well B. playing B. team B. liked B. library B. father B. It B. than B. glad B. good B. me C. water C. difficult C. look C. in trouble C. soon C. reading C. front C. hated C. street C. teacher C. He C. though C. afraid C. big C. her D. wood D. wonderful D. wait D. in hospital D. late D. studying D. school D. missed D. school D. headteacher D. One D. whether D. careful D. lazy D. him 查看答案
题型：多项选择题 如果美国商品在欧洲非常受欢迎，欧洲进口的美国商品数量增加，那么在长期内（）。A.欧元/美元汇率下跌；B.欧洲商品在美国市场上的价格上升；C.美国商品在欧洲市场上的价格下跌；D.欧元/美元汇率上升。 查看答案