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

题型:解答题

问题:

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.
考点:函数的奇偶性、周期性分段函数与抽象函数函数解析式的求解及其常用方法
题型:解答题
Michel is a young girl who works for the police as a handwriting expert. She has helped   26  many criminals  27 using her special talents.
When she was fourteen, Michel was already so interested in the   28  in her friends’ handwriting  29 she would spend hours  30 them.. after  31 college she went to France for a special two-year class in  32 at the School of Police Science.
Michel says that it is  33 for people to hide their handwriting. She can discover  34 of what she needs to know simply by looking at the writing with her own  35 , but she also has machines  36 help her  37 different kinds of paper and ink. This knowledge is often  38  great help to the  39 .
Michel believes that handwriting is a good sign of  40 kind of person the writer  41  .”I wouldn’t go out with a fellow  42 I didn’t like his handwriting,” she says. But she adds she  43  in love with her future husband, a young policeman  44  she studied his handwriting. It is later proved to be all right,  45 .
小题1:
A.searchB.followC.catchD.judge
小题2:
A.withB.asC.likeD.by
小题3:
A.differencesB.sameC.wayD.method
小题4:
A.thatB.asC.as toD.so that
小题5:
A.writingB.settingC.uncoveringD.studying
小题6:
A.finishingB.attendingC.startingD.finished
小题7:
A.booksB.handwritingC.tonguesD.letter
小题8:
A.possibleB.safeC.easyD.impossible
小题9:
A.mostB.allC.nothingD.little
小题10:
A.handsB.mindC.headD.eyes
小题11:
A.theyB.thoseC.thatD.with which
小题12:
A.carry outB.give outC.look outD.make out
小题13:
A.ofB.toC.withD.for
小题14:
A.teachersB.peopleC.policeD.students
小题15:
A.whatB.allC.whichD.to which
小题16:
A.isB.becomesC.belongsD.changes
小题17:
A.whetherB.ifC.afterD.unless
小题18:
A.feltB.droppedC.caughtD.fell
小题19:
A.afterB.whenC.becauseD.before
小题20:
A.howeverB.butC.tooD.either
题型:解答题

患者男,26岁,农民,因“高热、头痛10天”入院。查体:体温38.9℃,烦躁,头面及颈胸皮肤潮红,左腹股沟有1焦痂,左腹股沟淋巴结肿大,有触痛,眼结膜充血,双侧瞳孔等大等圆,颈软,心肺无异常,神经系统检查:克氏征阴性,布氏征阴性,巴氏征阴性。胸部CT:心肺正常;肝功能ALT150U/L;尿常规:蛋白(+);血常规:血红蛋白98g/L,白细胞5.8×109/L,中性0.75,淋巴0.25。

首选下列哪种病原治疗方法()

A.氯霉素

B.氨芐青霉素

C.头孢唑啉

D.氧氟沙星

E.红霉素

题型:解答题
江城子 密州出猎
苏 轼
  老夫聊发少年狂,左牵黄,右擎苍,锦帽貂裘,千骑卷平冈。为报倾城随太守,亲射虎,看孙郎。
  酒酣胸胆尚开张。鬓微霜,又何妨!持节云中,何日遣冯唐?会挽雕弓如满月,西北望,射天狼。
1.仔细观察右边这幅图,图中所展示的画面是词中的哪一句?
______________________________________________________
2.词中的“倾城”的意思是________,“为报倾城”体现了当地百姓对苏轼态度是:________。
3.从选文中加线的“狂”“卷”“挽”中任选一个,说说这个词是怎样体现豪放的?
______________________________________________________
题型:解答题

建设银行可以接受国内所有合法银行的银行汇票贴现

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排泥方法主要有()。

A.重力浓缩法

B.机械排泥法

C.静水压力法

D.真空压滤法

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