已知一直角三角形的两直角边长分别为6和8，则斜边上中线的长度是______． 发布时间：2017-05-26 22:46 │ 来源：www.tikuol.com 题型：填空题 问题： 已知一直角三角形的两直角边长分别为6和8，则斜边上中线的长度是______．
题型：填空题 人类在生产和生活中实际接触的往往是多种化学物质的混合物，它们可以在机体内发生复杂的联合作用。请判断下列联合毒作用属于何种类型。异丙醇无肝脏毒性，但同时接触CCl4 时可大大增强后者的肝毒性A．相加作用B．独立作用C．协同作用D．加强作用E．拮抗作用 查看答案
题型：填空题 完形填空 In the depths of my memory, many things I did with my father still live.These things have come torepresent, in fact, what I call__1_and love. I don't remember my father ever getting into a swimming pool.But he did__2_the water.Any kind of __3_ride seemed to give him pleasure.__4_ he loved to fish；sometimes he took me along.But I never really liked being on the water, the way my father __5_.I liked being at the water, movingthrough it, __16__it all around me.I was not a strong __7_, or one who learned to swim early, for I had my__8__.But I loved being in the swimming pool close to my father's office and__9__those summerdays with my father, who 10 come by on a break.I needed him to see what I could do.My fatherwould stand there in his suit, the 11 person not in swimsuit. After swimming, I would go 12 his office and sit on the wooden chair in front of his big desk,where he let me 13 anything I found in his top desk drawer.Sometimes, if I was left alone at his desk 14 he worked in the lab, an assistant or a student might come in and tell me perhaps I shouldn't beplaying with his 15 . But my father always 16 and said easily, "Oh, no, it's 17 ."Sometimes he handed me coins and told me to get 18 an ice cream…( )1. A. desire ( )2. A. avoid ( )3. A. boat ( )4. A. But ( )5. A. expected ( )6. A. having ( )7. A. swimmer ( )8. A. hopes ( )9. A. spending ( )10. A. should ( )11. A. next ( )12. A. away from ( )13. A. put up ( )14. A. the moment ( )15. A. fishing net ( )16. A. stood up ( )17. A. fine ( )18. A. the student ( )19. A. memory ( )20. A. as B. joy B. refuse B. bus B. Then B. desired B. to leave B. rider B. faiths B. saving B. would B. only B. out of B. break down B. the first time B. office things B. set out B. strange B. the assistant B. wealth B. but C. anger C. praise C. train C. And C. wished C. make C. walker C. rights C. wasting C. had to C. other C. by C. play with C. while C. wooden chair C. showed up C. terrible C. myself C. experience C. or D. worry D. love D. bike D. Still D. did D. get D. runner D. fears D. ruining D. ought to D. last D. inside D. work out D. before D. lab equipment D. turned out D. well D. himself D. practice D. and 查看答案