题干

解不等式(组),并把解集在数轴上表示出来。(每小题6分,共12分)
(1)1-≥2+          
(2)
上一题 下一题 0.0难度 选择题 更新时间:2015-09-08 11:13:27

答案(点此获取答案解析)

同类题1

任务型阅读

    Knowing your neighbors can make you feel safer and can make your life a little more enjoyable.____

    Start a Facebook group. Many online groups already exist for local communities, but they may just focus on swapping and selling objects, or simply for exploring the local area.____For example, starting a Facebook group.

    Get volunteering. Volunteering is a great way to meet like-minded neighbors and make a difference to your community.____Charities are the most obvious place to start. Charities, large or small, are always looking for help in regions across the UK. A simple Google search can help you discover local charities and volunteer opportunities.

    Practice everyday kindness. Kindness is the start to possible long-lasting friendships. Everyday acts of kindness can be as simple as saying hello when you see your neighbors in the street or the supermarket. It may be seeing someone struggle with the gardening and offering your help.____

    Start an exercise group. There are a rare few of us that are motivated to start exercising, and even fewer that enjoy going it alone.____Plan big walks of your area and ask neighbors to come along. You could sign up together to attempt a marathon or half marathon. Or perhaps you can arrange a Zumba, yoga, or aerobics (有氧运动) class in the community centre.

A. However, you are often too busy to realize this.

B. There are many ways to volunteer in your local community.

C. Starting a neighborhood exercise group may be just the ticket.

D. So why not set one up simply to get to know your neighbors better?

E. It may also be taking in that rather large parcel when no one is home.

F. If you're new to an area or don't know how to make local friends, try this advice.

G. These groups indeed make life in communities easier and more comfortable for you.

同类题3

阅读下面的文言文完成下面小题。

过秦论贾谊

    秦孝公据崤函之固,拥雍州之地,君臣固守以窥周室,有席卷天下,包举宇内,囊括四海之意,并吞八荒之心。当是时也,商君佐之,内立法度,务耕织,修守战之具;外连衡而斗诸侯。于是秦人拱手而取西河之外。

    孝公既没,惠文、武、昭襄蒙故业,因遗策,南取汉中,西举巴、蜀,东割膏腴之地,北收要害之郡。诸侯恐惧,会盟而谋弱秦,不爱珍器重宝肥饶之地,以致天下之士,合从缔交,相与为一。当此之时,齐有孟尝,赵有平原,楚有春申,魏有信陵。此四君者,皆明智而忠信,宽厚而爱人,尊贤而重士,约从离衡,兼韩、魏、燕、楚、齐、赵、宋、卫、中山之众。于是六国之士,有宁越、徐尚、苏秦、杜赫之属为之谋,齐明、周最、陈轸、召滑、楼缓、翟景、苏厉、乐毅之徒通其意,吴起、孙膑、带佗、倪良、王廖、田忌、廉颇、赵奢之伦制其兵。尝以十倍之地,百万之众,叩关而攻秦。秦人开关延敌,九国之师,逡巡而不敢进。秦无亡矢遗镞之费,而天下诸侯已困矣。于是从散约败,争割地而赂秦。秦有余力而制其弊,追亡逐北,伏尸百万,流血漂橹。因利乘便,宰割天下,分裂山河。强国请服,弱国入朝。延及孝文王、庄襄王,享国之日浅,国家无事。

    及至始皇,奋六世之余烈,振长策而御宇内,吞二周而亡诸侯,履至尊而制六合,执敲扑而鞭笞天下,威振四海。南取百越之地,以为桂林、象郡;百越之君,俯首系颈,委命下吏。乃使蒙恬北筑长城而守藩篱,却匈奴七百余里。胡人不敢南下而牧马,士不敢弯弓而报怨。于是废先王之道,焚百家之言,以愚黔首;隳名城,杀豪杰,收天下之兵,聚之咸阳,销锋镝,铸以为金人十二,以弱天下之民。然后践华为城,因河为池,据亿丈之城,临不测之渊,以为固。良将劲弩守要害之处,信臣精卒陈利兵而谁何。天下已定,始皇之心,自以为关中之固,金城千里,子孙帝王万世之业也。

    始皇既没,余威震于殊俗。然陈涉瓮牖绳枢之子,氓隶之人,而迁徙之徒也;才能不及中人,非有仲尼、墨翟之贤,陶朱、猗顿之富;蹑足行伍之间,而倔起阡陌之中,率疲弊之卒,将数百之众,转而攻秦,斩木为兵,揭竿为旗,天下云集响应,赢粮而景从。山东豪俊遂并起而亡秦族矣。……