下图为某家族苯丙酮尿症的遗传系谱图（基因用A、a表示），据图回答：人类苯丙酮尿症基因

发布时间：2019-02-12 00:09 │ 来源：www.tikuol.com

题型：填空题案例分析题

问题：

下图为某家族苯丙酮尿症的遗传系谱图（基因用A、a表示），据图回答：

人类苯丙酮尿症基因在（）染色体上，其遗传方式遵循（）定律

考点：高中生物人类遗传病人类遗传病题库

题型：填空题案例分析题

晶面中间部位相对突起，而形成曲面与弧线状的晶棱组成的晶体，称之为（）。

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题型：填空题案例分析题

为了测量某化工厂的污水排放量，技术人员在该厂的排污管末端安装了如图所示的流量计，该装置由绝缘材料制成，长、宽、高分别为a、b、c，左右两端开口，在垂直于前、后面的方向加磁感应强度为B的匀强磁场，在上下两个面的内侧固定有金属板M、N作为电极，污水充满管口地从左向右流经该装置时，电压表将显示两个电极间的电压U。若用Q表示污水流量（单位时间内流出的污水体积），下列说法中正确的是

[ ]

A．若污水中负离子较多，则N板比M板电势高

B．M板电势一定高于N板的电势

C．污水中离子浓度越高，电压表的示数越大

D．电压表的示数U与污水流量Q成正比

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题型：填空题案例分析题

完形填空。

     One summer day my father sent me to buy wire for our farm. At 16, I liked   1 better than driving our
truck,   2 this time I was not happy. My father had told me I'd have to ask for credit (赊账) at the store.
     Sixteen is a   3 age, when a young man wants respect, not charity. It was 1976, and the ugly   4 of
racial discrimination was   5 a fact of life. I'd seen my friends ask for credit and then stand, head down,
while the store owner   6 whether they were "good for it." I knew black youths just like me who were   7
like thieves by the store clerk each time they went into a grocery.
     My family was   8 . We paid our debts. But before harvest, cash was short. Would the store owner   9
us?
     At Davis's store, Buck Davis stood behind the cash desk, talking to a farmer. I nodded  10  I passed him
on my way to the hardware shelves. When I brought my  11 to the caskh desk, I said 12 , "I need to put this
on credit."
     The farmer gave me and amused, distrustful   13 . But Buck's face didn't change. "Sure," he said 14 .
"Your daddy is  15 good for it." He  16 to the other man. "This here is one of James Williams's sons." The
farmer nodded in a neighborly 17 . I was filled with pride. James William's son. Those three words had opened
a door to an adult's respect and trust.
     That day I discovered that the good name my parents had  18 brought our whole family the respect of our
neighbors. Everyone knew what to  19 from a Williams: a decent person who kept his word and respected
himself  20 much to do wrong.

( )1. A. something
( )2. A. and
( )3. A. prideful
( )4. A. intention
( )5. A. thus
( )6. A. guessed
( )7. A. watched
( )8. A. generous
( )9. A. blame
( )10. A. until
( )11. A. purchases
( )12. A. casually
( )13. A. look
( )14. A. patiently
( )15. A generally
( )16. A. pointed
( )17. A. sense
( )18. A. earned
( )19. A. receive
( )20. A. very

B. nothing
B. so
B. wonderful
B. shadow
B. just
B. suspected
B. caught
B. honest
B. excuse
B. as
B. sales
B. confidently
B. stare
B. eagerly
B. never
B. replied
B. way
B. deserved
B. expect
B. so

C. anything
C. but
C. respectful
C. habit
C. still
C. questioned
C. dismissed
C. friendly
C. charge
C. once
C. orders
C. cheerfully
C. response
C. easily
C. sometimes
C. turned
C. degree
C. given
C. collect
C. how

D. everything
D. for
D. colorful
D. faith
D. ever
D. figured
D. accused
D. modest
D. trust
D. since
D. favorites
D. carefully
D. comment
D. proudly
D. always
D introduced
D. mood
D. used
D. require
D. too

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题型：填空题案例分析题

监督机构实施监督时，应当由（）以上监督人员共同进行

A.两名

B.三名

C.四名

D.五名

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题型：填空题案例分析题

4．建设单位从建设项目投资控制角度考虑，倾向于采用固定总价合同。固定总价合同具有什么特点

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