飞机的重心越靠前,相同飞机重量,相同飞机飞行速度的条件下,飞机的阻力().A.越大 发布时间:2019-11-06 23:22 │ 来源:www.tikuol.com 题型:单项选择题 问题: 飞机的重心越靠前,相同飞机重量,相同飞机飞行速度的条件下,飞机的阻力().A.越大B.越小C.不变
题型:单项选择题 (2013·高考天津卷)No one ________be more generous; he has a heart of gold.A.couldB.mustC.dareD.need 查看答案
题型:单项选择题 近年来,长江三角洲在经济发展的同时,出现了热岛效应、咸潮侵袭、滩涂冲刷等一系列环境问题。1、长江三角洲区域性热岛效应比较明显的主要原因是①能源消耗加大②城市人口剧增③水域面积扩大④市郊农业发展[ ]A.①②B.③④C.②④D.①③2、上海在长兴岛北侧边滩筑堤建成青草沙水库。该水库主要功能是[ ]A.防止洪水泛滥B.扩大湿地面积C.开发旅游景点D.提供优质水源3、下列因素中,可能使长江三角洲滩涂遭受侵蚀与海岸线后退的是①上游输沙量降低②风暴潮频发③长江径流量加大④海平面上升[ ]A.①②③B.②③④C.①②④D.①③④ 查看答案
题型:单项选择题 完形填空。Hi Cindy, Please don't worry if you feel a little strange around boys. You are in the process of 1 from a little girlinto a young womman and there are 2 called hormones (荷尔蒙) that are chaIlging not only your body butyour 3 . For example, you say you used to feel at ease 4 boys and you would usually run and fight one another for 5 . That was Cindy, the little girl. The 6 woman doesn't want to fight boys or even run withthem 7 your interests are chaIlging. That is what is making you feel strange and it is also 8 to the other girls around you and also to the boys. Your life is 9 a different stage but you should understand that this is(a) 10 normal, and (b) something that will pass quickly. I think you should again try to 11 amund boys. You can still talk with them about 12 you like including sports, movies, web sites and celebrities (名人). I 13 that you not try to fight with them, however, because the 14 are becoming much bigger and stronger. I think you will find that you will 15 being with boys but that your feelings will be different from the 16 they used to be I know you are not supposed to hve a 17 while you are still in school in China, but if you start to find some boys very handsome and you are strongly 18 to some of them, don't be surprised. 19 , this is all very normal. For now, you should 20 your school work, though you will find that some boys are attracted to you. This will be a new adventure for you and mybest advice is to relax and enjoy it. Good luck! Brad ( )1.A. starting ( )2.A. cells ( )3.A. mind ( )4.A. with ( )5.A. praise ( )6.A. brave ( )7.A. before ( )8.A. referring ( )9.A. entering ( )10.A. hardly ( )11.A. play ( )12.A. somebody ( )13.A. recommend ( )14.A. girls ( )15.A. hate ( )16.A. model ( )17.A. boyfriend ( )18.A. opposed ( )19.A. Rather ( )20.A. depend on B. changing B. nutritions B. head B. for B. honor B. unique B. because B. appealing B. setting B. possibly B. relax B. anybody B. demand B. adults B. enjoy B. standard B. girlfriend B. attracted B. Besides B. decide on C. surviving C. chemicals C. life C. against C. good C. smart C. until C. happening C. reflecting C. perfectly C. date C. something C. command C. boys C. avoid C. style C. degree C. exposed C. Again C. agree on D. ranging D. objects D. study D. without D. fun D. young D. when D. pointing D. representing D. nearly D. fool D. anything D. determine D. kids D. regret D. way D. job D. accustomed D. Afterwards D. concentrate on 查看答案