下列哪种细胞内的基因不是成对存在的[ ] A.卵细胞 B.受精卵 C.肌细胞 D

题型:选择题

问题:

下列哪种细胞内的基因不是成对存在的[ ]

A.卵细胞

B.受精卵

C.肌细胞

D.白细胞

考点:基因
题型:选择题
完形填空。
     Once there was a father and a son. They were ill-tempered (坏脾气的) and never gave way to others.
     One day the father decided to  1  some friends to dinner in his house. He  2  his son to buy
some meat in town. When the son got  3  his father wanted, he turned back and walked towards the
town gate. Just then a man was coming from the outside. The gate wasn't  4  enough to let two men in
and out at the same time. But  5  of them would give way to the other. They  6  straight face to face
inside the gate hour after hour. But the father was worried." What shall I do? My son hasn't  7  yet. I
can't wait any longer." He wanted to know what is the  8  with his son was. So he left his friends at
home, and he himself went to the town to look for his son.
     "You may first take the  9  home for my friends. Let me stand here against him  10 ." He said to his
son when he knew what had happened.
( )1. A. speak    
( )2. A. hoped    
( )3. A. why      
( )4. A. long     
( )5. A. either   
( )6. A. stood    
( )7. A. gone    
( )8. A. wrong    
( )9. A. meat    
( )10. A. politely
B. answer  
B. told   
B. where  
B. wide   
B. all   
B. went   
B. bought  
B. accident
B. dinner  
B. instead
C. say   
C. let   
C. what   
C. high   
C. both   
C. lay   
C. returned
C. thing  
C. bread   
C. safely  
D. ask    
D. wished 
D. which  
D. narrow 
D. neither
D. walked 
D. been   
D. matter 
D. money                             
D. kindly 
题型:选择题

如图显示的是显微镜的几个操作步骤,正确的顺序是(  )

A.①→②→③→④

B.①→③→②→④

C.③→①→②→④

D.③→①→④→②

题型:选择题
在地球表面沿水平方向发射一个飞行器,不计空气阻力,如果初速度为7.9km/s(第一宇宙速度),则此飞行器(   )

A.会落回地面

B.会绕地球做匀速圆周运动

C.会绕地球做椭圆运动

D.会挣脱地球的束缚飞到太阳系外

题型:选择题

某化工厂在内部质量管理体系审核时,针对不同部门,组成审核组。作为审核组成员的四车间质量副主任,在对四车间的半成品检验进行检查时,发现检验现场没有该半成品的检验规范,询问检验员:“检验规范放在什么地方?”检验员回答:“为了防止丢失,检验规范都保存在档案室,况且我们每天都用,也都熟悉了。”

审核组在审核现场直接发现的情况是()。

A.审核发现

B.审核证据

C.审核结论

D.审核信息

题型:选择题

如果说,清末文人们的失落造成其倡导革新而追求“现代”的话,那么,中国文人“传统”思想骨子里的抗争的确在一直压抑并释放。显然,无论继承或变革中国音乐教育,都必须在传统文化里寻找支持;他们也认识到只有依赖于“传统”,自身的“现代”才能够正统,才能够为中国固有的价值观所肯定。他们对于从西方而来的“现代”的接受在心理上是矛盾的,当猛然发现自己出现身份认同危机时,标榜自身的“传统”质地似乎是最直接而有效的手段。
这段文字意在说明( )。

A.“传统”对“现代”的发展有正本清源之作用
B.中国文人对“传统”的态度是矛盾的,既想抗争,又不得不继承
C.改革和发展都离不开“传统”
D.中国文人对西方文明的接受是矛盾的

更多题库