热点试题

[ 数学 ] 若,则x的相反数是 A.B.C.-6D.6

,则x的相反数是
A.B.C.-6D.6

2016-05-17 | 0

[ 数学 ] 若A(x1,y1),B(x2,y2)是双曲线上的两点,且x1>x2>0,则y1(    )

若A(x1,y1),B(x2,y2)是双曲线上的两点,且x1>x2>0,则y1(    )y2。(填“>”、“=”或“<”)

2016-05-18 | 0

[ 数学 ] 已知函数f(x)=ax+bx,且f(1)=2,f(2)=52(1)求a、b的值;(2)判断

已知函数f(x)=ax+
b
x
,且f(1)=2,f(2)=
5
2

(1)求a、b的值;
(2)判断函数f(x)的奇偶性;
(3)判断f(x)在(1,+∞)上的单调性并加以证明.

2016-05-22 | 0

[ 数学 ] 本公司计划2010年在甲、乙两个电视台做总时间不超过300分钟的广告,广告总费用不超过9万

本公司计划2010年在甲、乙两个电视台做总时间不超过300分钟的广告,广告总费用不超过9万元,甲、乙电视台的广告收费标准分别为500元/分钟和200元/分钟,规定甲、乙两个电视台为该公司所做的每分钟广告,能给公司事来的收益分别为0.3万元和0.2万元。问该公司如何分配在甲、乙两个电视台的广告时间,才能使公司的收益最大,最大收益是多少万元?

2016-05-24 | 0

[ 语文 ] 下列各组词语中,没有错别字的一项是A.讴歌慷慨磐石委曲求全B.杂糅耽误嬉戏糜糜之音C.奔驰

下列各组词语中,没有错别字的一项是
A.讴歌慷慨磐石委曲求全B.杂糅耽误嬉戏糜糜之音
C.奔驰柔纫偕老溘然长逝D.阡陌拾掇殒落循规蹈矩

2016-05-26 | 0

[ 语文 ] 对下面的短语结构类型判断正确的是(   )敬畏自然 俗世奇人 大雁归来 登飞来峰A.主谓短

对下面的短语结构类型判断正确的是(   )
敬畏自然 俗世奇人 大雁归来 登飞来峰
A.主谓短语动宾短语偏正短语动宾短语
B.动宾短语并列短语主谓短语偏正短语
C.偏正短语动宾短语后补短语动宾短语
D.动宾短语偏正短语动宾短语主谓短语

2016-05-27 | 0

[ 语文 ] 诗文名句默写(8分)小题1:采菊东篱下,                        。

诗文名句默写(8分)
小题1:采菊东篱下,                        。(陶渊明《饮酒》)
小题2:长风破浪会有时,                       。(李白《行路难》)
小题3:萧鼓追随春社近,                     。(陆游《游山西村》)
小题4:       ,若出其里。(曹操《观沧海》)
小题5:                      ,西北望,射天狼。(苏轼《江城子》)
小题6:安得广厦千万间,                     ,风雨不动安如山。杜甫《茅屋为秋风所破歌》
小题7:            ,俯身散马蹄。(曹植《白马篇》)
小题8:            ,思而不学则殆。(《论语》八则)
小题9:纸上得来终觉浅,               。(陆游《冬夜读书示子聿》)
小题10:问渠哪得清如许,               。(朱熹《观书有感》)

2016-05-27 | 0

[ 语文 ]        在春天的深处,安静细细地感受着春光。许久,她张开手指,蝴蝶扑闪着翅膀飞走了,

       在春天的深处,安静细细地感受着春光。许久,她张开手指,蝴蝶扑闪着翅膀飞走了,安静仰起头来张望。此刻安静的心上,一定划过一条美丽的弧线,蝴蝶在她八岁的人生划过一道极其优美的曲线,述说着飞翔的概念。    
       我没有惊动安静。谁都有生活的权利,谁都可以创造一个属于自己的缤纷世界。在这个清香袅袅的早晨,安静告诉我这样的道理。     
1.用“\”划掉画线字的错误读音。    
     膀(chì  cì)    头(yǎng  rǎng)         
2.多音字组词。
     划 huá(     ) huà(     )    创 chuāng (      ) chuàng (      )
3.正确解释下列词语的含义。
     缤纷:                                                                                    
     袅袅:                                                                                      
4.请你结合课文说说对这句话的理解。   
    “谁都有生活的权利,谁都可以创造一个属于自己的缤纷世界。” 
                                                                                                                                       
                                                                                                                                       
5.用简短的句子概括出段意。
                                                                                                                                         

2016-05-27 | 0

[ 语文 ] 在下面介绍“黑匣子”的文字横线处补写恰当的语句,使整段文字语意完整连贯,内容贴切。每处不超

在下面介绍“黑匣子”的文字横线处补写恰当的语句,使整段文字语意完整连贯,内容贴切。每处不超过20个字。(6分)
  ① 它能将飞机的高度、速度、航向、飞机状况等飞行参数都记录下来。 ② 。它有很厚的钢板和许多层绝热防冲击保护材料。在1100℃的火焰中能经受30分钟的烧烤,能承受2吨重物挤压5分钟,能够在酸液、海水等多种液体中浸泡几个月。所以,空难发生后, ③ 

2016-05-27 | 0

[ 英语 ] 三.阅读 (共两节,满分40分)第一节阅读理解 (共15小题;每小题2分,满分30分)阅读


三.阅读 (共两节,满分40分)
第一节阅读理解 (共15小题;每小题2分,满分30分)
阅读下列短文,从每题所给的A、B、C和D项中,选出最佳选项,并填写在答题卡上。
When I asked my daughter which item she would keep; the phone, the car, the cooker, the computer, the TV, or her boyfriend, she said“the phone”. Personally, I could do without the phone entirely, which makes me unusual. Because the telephone is changing our lives more than any other piece of technology.
Point 1 The telephone creates the need to communicate, in the same way that more roads create more traffic. My daughter comes home from school at 4:00 pm and then spends an hour on the phone talking to the very people she has been at school with all day. If the phone did not exist, would she have anything to talk about?
Point 2 The mobile phone means that we are never alone. “The mobile saved my life,”says Crystal Johnstone. She had an accident in her Volvo on the A45 between Otley and Skipton. Trapped inside, she managed to make the call that brought the ambulance(救护车) to her rescue.
Point 3 The mobile removes our secret. It allows marketing manager of Haba Deutsch, Carl Nicolaisen, to ring his sales staff all round the world at and time of day to ask where they are , where they are going, and how their last meeting went.
Point 4 The telephone separates us. Antonella Bramante in Rome says, “We worked in separate offices but I could see him through the window. It was easy to get his number. We were so near——but we didn’t meet for the first two weeks!”
Point 5 The telephone allows us to reach out beyond our own lives. Today we can talk to several complete strangers simultaneously ( 同时地) on chat lines (at least my daughter does. I wouldn’t know what to talk about). We can talk across the world. We can even talk to astronauts (if you know any) while they’re space-walking. And, with the phone line hooked up to the computer, we can access(存取) the Internet, the biggest library on Earth.
1.How do you understand‘Point 1 —The telephone creates the need to communicate,…’?
A. People don’t communicate without telephone.
B. People communicate because of the creating of the telephone.
C. People communicate more since telephone has been created.
D. People communicate more because of more traffic.
2.Which of the following best shows people’s attitude towards mobile phones?
A. Mobile phones help people deal with the emergency.
B. Mobile phones bring convenience as well little secret to people.
C. Mobile phones are so important and should be encouraged.
D. Mobile phones are part of people’s life.
3. Which points do you think support the idea that phones improve people’s life?
a. Point 1. b. Point2. c. Point3. d. Point 4. e. Point 5.
A. c, d     B. a, e        C. a, c           D. b, e
4.It is possible to talk to several complete strangers simultaneously through .
A. the TV screen                          B. a fax machine
C. the phone line hooked up to the computer    D. a microphone
5.The best heading for the passage is .
A. phone Power B. Kinds of Phone
C. how to Use Phones D. Advantage of Phones

2016-05-29 | 0