关于“二分法”求方程的近似解，说法正确的是[ ] A．“二分法”求方程的近似解一

发布时间：2017-05-09 03:40 │ 来源：www.tikuol.com

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问题：

关于“二分法”求方程的近似解，说法正确的是[ ]

A．“二分法”求方程的近似解一定可将y=f(x)在[a，b]内的所有零点得到

B．“二分法”求方程的近似解有可能得不到y=f(x)在[a，b]内的零点

C．应用“二分法”求方程的近似解，y=f(x)在[a，b]内有可能无零点

D．“二分法”求方程的近似解可能得到f(x)=0在[a，b]内的精确解

考点：用二分法求函数零点的近似值

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完形填空。

     I'm twelve years old. I'm large    1   my age and have big feet. I look like both my mum and my dad but
in    2   ways. I have fair hair and blue eyes    3   my dad, and a mouth and expression like my mum. My
nose is like my mother's and definitely nothing like my father's. I am very like my mum in temperament
(性情),    4   I don't have her very hot temper (脾气).
     I hate    5   and arguments. I hate being laughed at and some jokes hurt me more than I    6    .
     Friendship is important to me with people of all    7    . My home is very important to me and I
would hate    8    to a boarding (寄宿) school. On the whole I'm a fairly tidy person.
     I am quite creative with my hands. I like    9   models, pendants and candles   10    other things. I like
acting and music, I    11   the piano and can play the trumpet. I am not very interested in reading because
I like to be   12    most of the time. I    13   my bike a lot. My father lives abroad and I enjoy traveling to
see him. I enjoy my    14   (We have a French cook) and I have a sweet tooth. I don't like my hair being
brushed by someone else and I hate it long.
     Finally, the one thing I really find    15   is homework as I would rather be outside or make something.

( )1. A. for
( )2. A. many
( )3. A. as
( )4. A. though
( )5. A. singing
( )6. A. show
( )7. A. along
( )8. A. to talk
( )9. A. doing
( )10. A. as well as
( )11. A. beat
( )12. A. outside
( )13. A. buy
( )14. A. food
( )15. A. merry

B. of
B. different
B. on
B. because
B. dancing
B. tell
B. ages
B. to be sent
B. studying
B. than
B. grab
B. inside
B. ride
B. housework
B. special

C. to
C. two
C. like
C. and
C. fighting
C. talk
C. day
C. to be given
C. exploring
C. also
C. train
C. at home
C. protect
C. Friendship
C. proud

D. in
D. few
D for
D. if
D. cleaning
D. feel
D. night
D.to open
D. Making
D. with
D. play
D. at school
D. color
D. holiday
D. boring

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2004年1月，某学者采用分层整群随机抽样的方法对某市饮食服务业从业人员进行乙型肝炎患病情况的调查，在统计分析时应选用（）。

A.罹患率和患病率

B.发病率和死亡率

C.患病率

D.病死率和死亡率

E.续发率和引入率

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工银万事达卡多币种卡按卡片等级分为是（）。

A.普卡

B.金卡

C.白金卡

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WMS与K、D在反映价格变化时由快至慢的排序依次为( )。

A．WMS、D、K
B．K、WMS、D
C．WMS、K、D
D．D、K、WMS

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出现交叉性瘫痪时病变部位在

A．脑干
B．大脑皮质
C．内囊
D．小脑
E．脊髓

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