有关二尖瓣超声所见，下列哪项不对()A．二尖瓣位于左侧房室口 B．前后瓣均有腱索相连 发布时间：2017-06-19 05:33 │ 来源：www.tikuol.com 题型：单项选择题 问题： 有关二尖瓣超声所见，下列哪项不对()A．二尖瓣位于左侧房室口B．前后瓣均有腱索相连C．二尖瓣较三尖瓣位置高D．二尖瓣脱垂以前叶多见E．前后叶正常活动呈逆向运动
题型：单项选择题 完形填空。 I live in Albuquerque, New Mexico. I used to give a lot of money to the homeless,feeling 1 for them.But as time passed, I became a mom with no home, a huge 2 , and hardly any income. As a result, I 3 giving money to the people on the side of the road and became very 4 . Things started to change for me 5 . I had a home, a backyard for my daughter,and plenty of food, andI started to 6 myself out of debt. One day we saw a homeless person with the 7 , "Will work for food." I 8 . My daughter commented. "Mommy, you used to always give money to those people in 9 ." I replied,"Honey, they just use that money for 10 , or other bad things." She didn't respond. 11 when I said that, Ididn't feel right. Three days later, I was driving to 12 my daughter from school. A man was standing on the corner, andsomething deep 13 me said,"Just help the guy." So I 14 down my window, and he ran over excitedly. Hesaid,"God bless you, I only need 77 cents." I 15 into my ashtray (烟灰缸) and strangely enough, there 16 three quarters and two pennies. I picked them up and gave them to him. He 17 with joy and tears in his eyes."Wow, you just made it 18 for me to see my mom for Christmas! Thank you so much; the 19 that had this great sale is leaving in 20minutes!" It was a moment I'll 20 forever. I think that man won't forget it either, but I was the one who got the best gift in life-GIVING. ( )1. A. angry ( )2. A. debt ( )3. A. continued ( )4. A. rich ( )5. A. slowly ( )6. A. save ( )7. A. determined ( )8. A. ran away ( )9. A. danger ( )10. A. life ( )11. A. And ( )12. A. bring up ( )13. A. on ( )14. A. rolled ( )15. A. reached ( )16. A. hid ( )17. A. stood up ( )18. A. possible ( )19. A. plane ( )20. A. thank B. sorry B. burden B. appreciated B. pleased B. immediately B. pull B. sign B. turned back B. love B. book B.So B. carry out B. inside B. pushed B. went B. stood B. turned up B. meaningful B. bus B. respect C. grateful C. disease C. hated C. relaxed C. quickly C. run C. child C. passed by C. need C. food C. But C. pick up C. behind C. blew C. knocked C. slept C. set out C. wonderful C. woman C. remember D. strange D. problem D. stopped D. bitter D. greatly D. feed D. advertisement D. sped up D. sadness D. smoking D. Even D. take out D. over D. took D. shouted D. sat D. burst out D. interesting D. man D. hold 查看答案
题型：单项选择题 下列哪一项符合下壁Q波心肌梗死的心电图改变（）A.V1～V3导联宽而深的Q波形成B.V7～V9导联宽而深的Q波形成C.Ⅱ、Ⅲ、aVF导联宽而深的Q波形成D.V3R～V6R导联宽而深的Q波形成E.I、aVL导联宽而深的Q波形成 查看答案
题型：单项选择题 20岁女患者，发作性头痛1年，在头痛前有短暂而轻微的视力模糊和闪光，继之偏侧搏动性头痛，常伴恶心和呕吐，持续3-6h后缓解。应当诊断为（）A.典型偏头痛B.紧张型头痛C.普通型偏头痛D.丛集性头痛E.基底动脉型偏头痛 查看答案
题型：单项选择题 简单香豆素的取代规律是（）A.5、6、8位可有含氧基团存在B.7位绝大多数都有含氧基团存在C.异戊烯基常连在6、8位D.异戊烯基常连在5、7位E.常见的取代基团有羟基、甲氧基、异戊烯基 查看答案