下图中，甲表示某生物细胞分裂过程中DNA的数目变化。乙表示该生物细胞某一分裂时期

发布时间：2017-04-14 22:29 │ 来源：www.tikuol.com

题型：读图填空题

问题：

下图中，甲表示某生物细胞分裂过程中DNA的数目变化。乙表示该生物细胞某一分裂时期，据图回答

⑴一个完整的细胞周期是________(用字母表示)。

⑵核膜逐渐解体，核仁逐渐消失是在_________段。

⑶着丝点分裂，两条染色单体分开是在_________段。

⑷乙图是_______细胞有丝分裂简图，理由是_________

⑸图乙中表示的细胞分裂期相当于图甲中______段，该时期染色体变化的主要特点是________，该细胞分裂后形成的子细胞中含有染色体______条，图乙中5的复制发生在甲图的_______段。

考点：细胞周期有丝分裂

题型：读图填空题

完形填空。

     A new term has begun. Teachers are   1   about the fact that new students are not easy to handle. They
like to bring cellphones and MP3 players to school. What is   2 , some students even use cellphones to do
with out-of-class matters in class, or sometimes just for fun. Some other students listen to MP3 players
when they are having a lesson that they are not interested in.
     Are these new students really that   3 ? "Yes," says Delaney Kirk, a professor at Drake University.   4
she adds it's not their fault. Instead, the things that they bring into school-cellphones, MP3 players and so
on-and the teachers are to blame. Kirk first began thinking about students' manners six years ago. "I had my
first class in which students were sleeping or talking to each other. It seemed that learning well   5   nothing
to do with them," she says. "At first, I got worried about this, but then I said to myself, 'You're teaching   6  ,
and you need to manage this … These students need to know more about manners. It's time to help them
develop some good   7  . They shouldn't waste time doing nothing when they are young. Sooner or later, they
might regret the time they have wasted.'"
     Kirk also   8   a list of suggestions to help teachers better manage their classes. The following are among
her suggestions:
     ● Tell students how they will benefit by taking the class. On the first day of class, emphasize its
importance   9   giving some homework that students must turn in next time.
     ● Do not allow them to bring cellphones and MP3 players to the class at all.
     ● Decide  10  formal and informal the class will be.

( )1. A. excited
( )2. A. bad
( )3. A. rude
( )4. A. But
( )5. A. learned
( )6. A. management
( )7. A. ideas
( )8. A. makes
( )9. A. of
( )10. A. what

B. worried
B. worse
B. polite
B. However
B. did
B. English
B. speeches
B. brings
B. on
B. how

C. surprised
C. good
C. friendly
C. And
C. had
C. Chinese
C. habits
C. gets
C. at
C. which

D. interested
D. better
D. curious
D. Therefore
D. shared
D. lessons
D. classes
D. takes
D. by
D. why

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对于风机盘管的水系统，哪种调节方式为变流量水系统()

A．电动三通阀调节水量

B．电动两通阀调节水量

C．三速开关手动调节风量

D．自动调节风机转速控器

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题型：读图填空题

烧结对熔剂质量总的要求是什么？

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题型：读图填空题

下锁销组成补充新品时，配件材质须为（）级钢，并有制造厂代号及材质标记。

A.B

B.C

C.E

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题型：读图填空题

女性，52岁。3个月来在休息或劳累后于心前区有憋闷感，含硝酸甘油20分钟缓解。有高血压病史十余年。实验室检查：空腹血糖5mmol/dl，胆固醇5.5mmol／dl，HDL-C2.0mmol／dl，LDL-C2.5mmol/dl。

该患者的冠心病危险因素是（）

A.高脂血症

B.糖尿病

C.高血压

D.女性

E.内分泌紊乱

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