已知△ABC的顶点B、C在椭圆 +y2=1上,顶点A是椭圆的一个焦点,且椭圆的另 发布时间:2017-04-26 12:02 │ 来源:www.tikuol.com 题型:填空题 问题: 已知△ABC的顶点B、C在椭圆 +y2=1上,顶点A是椭圆的一个焦点,且椭圆的另外一个焦点在BC边上,则△ABC的周长是
题型:填空题 某社区老年人口平均年龄为71.6岁,经调查老人们健康生活(生命质量权重W=1.00)的平均年龄为65.2岁,不卧床但活动受限(W=0.59)的平均年限为4.5年,卧床(W=0.34)的平均年限为1.9年。用生命质量方法重新评价该社区老年人口的健康寿命为()A.68.5岁B.69.9岁C.65.2岁D.61.7岁E.69.1岁 查看答案
题型:填空题 完形填空。 Several days ago my family and I went sledding(雪橇)and as I watched my children climbing up the slope (斜坡), I started thinking. Many people believe that most of today's social 1 are because of the "me" generation; teenagers just care about themselves and pay no 2 to others. Some even think today's teenagers won't do anything 3 there is something in it for them. Yet, while watching, I saw a 4 side of teenagers. I watched my two oldest children take my youngest by the hand to help her 5 up the slope. They would have been 6 without her, 7 not once did they try to set off without her. And when the sled 8 my two daughters was aimed 9 the embankment (路堤), it was my five-year-old son who ran to them to stop them from falling and 10 themselves. Don't get me wrong; these children sometimes 11 among themselves to get the things they want. But I can take them to the shop and know that they won't 12 anything, I can talk to them about the 13 and know that they will offer to send some of their own money to 14 the people in the disaster area, and I can ask them to 15 with those children left alone and know that they will do their best to befriend them. Perhaps it's not the "me" generation that 16 many of society's problems - not the teenagers who want 17 ,but the adults in their lives who have taught them to 18 think only of themselves and to want everything. Most young children want to help. We can 19 that feeling to continue into adulthood by teaching the lesson my children learned while sledding: Life is a slippery slope, but we can all make it to the 20 if we remember to help others.( )1. A. problems ( )2. A. money ( )3. A. until ( )4. A. different ( )5. A. sign ( )6. A. happier ( )7. A. but ( )8. A. knocking ( )9. A. across ( )10. A. supporting ( )11. A. share ( )12. A. care about ( )13. A. dream ( )14. A. help ( )15. A. quarrel ( )16. A. cause ( )17. A. nothing ( )18. A. politely ( )19. A. force ( )20. A. origin B. troubles B. worry B. unless B. same B. hold B. faster B. so B. making B. beyond B. running B. shout B. ask for B. weather B. favor B. struggle B. provide B. something B. selfishly B. request B. top C. matters C. care C. although C. strange C. climb C. slower C. and C. dropping C. towards C. crying C. fight C. look for C. reason C. treat C. play C. act C. everything C. generously C. remember C. realism D. difficulties D. attention D. when D. similar D. clean D. higher D. for D. carrying D. around D. hurting D. talk D. think about D. earthquake D. relax D. deal D. shake D. anything D. usefully D. encourage D. start 查看答案
题型:填空题 社会主义在曲折中发展的决定因素,不包括()A.社会主义作为新生事物,其成长不会一帆风顺B.人们对社会主义社会的基本矛盾的认识有一个逐渐发展的过程C.经济全球化对于社会主义的发展既有机遇又有挑战D.社会主义的理论还有待于充分论证 查看答案