高等动物体的胚胎发育过程遵循()。A、生物发生律 B、不可逆律 C、平行律 D、适应

题型:单项选择题

问题:

高等动物体的胚胎发育过程遵循()。

A、生物发生律

B、不可逆律

C、平行律

D、适应辐射

考点:生物学普通动物学普通动物学题库
题型:单项选择题
完形填空。
      Elena Desserich was a little girl. She loved to   1   and write. Elena dreamed of becoming an artist when
she grew up-but sadly, she   2   had the chance to be an adult. When elena was 5 years old, the   3   said that she
had brain cancer (癌症) and only had 135 days to   4  .
      Elena   5   the long days in hospital working on her painting, which were full of hearts and smiling families.
  6   of her painting was shown in a gallery (画廊), right next to a Picasso's painting. Soon she lost the use of her
  7  , and she began to "talk" with her family by writing notes.
     When Elena died, her parents were very sad,   8   they knew the day would come. When they were tidying up
her things, they began to find notes. All through her final days, Elena was writing love notes to her family and
hiding (藏)   9   in secret places in the house. 
     Her parents started to collect them and all the   10   would say "I love you Mum, Dad and Grace." They kept
finding them-the amazing gift from Elena.
( ) 1. A. sing        
( ) 2. A. never       
( ) 3. A. father      
( ) 4. A. die         
( ) 5. A. took        
( ) 6. A. All         
( ) 7. A. voice       
( ) 8. A. ever since  
( ) 9. A. it        
( ) 10. A. notes     
B. play         
B. sometimes    
B. teacher      
B. live         
B. paid         
B. One          
B. eyes         
B. even               
B. her          
B. paintings  
C. paint        
C. always       
C. mother       
C. work         
C. spent        
C. Both         
C. ears         
C. even though     
C. that         
C. books      
D. read      
D. usually           
D. doctor    
D. paint     
D. cost      
D. Neither   
D. nose      
D. however   
D. them      
D. places  
题型:单项选择题

史学家认为,1640年~1688年的英国革命与1789年~1830年的法国革命进程有许多相似之处。二者的相似之处有

①都建立过资产阶级共和国②都处死了反对革命的国王③人民群众都积极参加革命④经过反复才确立了资本主义制度

A.①②

B.①③

C.①②③

D.①②③④

题型:单项选择题

关于卵巢癌的预防下列哪项是错误的

A.避免高胆固醇食物

B.患卵巢囊肿都应尽早手术切除

C.口服避孕药

D.盆腔肿块诊断不清或保守治疗无效者,应及早行腹腔镜探查或开腹探查

E.对患有遗传性卵巢癌综合征的女性在适当的年龄行预防性卵巢切除

题型:单项选择题

公用工程管道及仪表流程图中应标识出的内容包括()。

①与公用工程管道有关的设备的设计参数

②与公用工程管道有关的管线设计参数

③与公用工程管道有关的仪表控制方案

④在PID中已标识的公用物料及仪表

A、①② 

B、③④ 

C、①②③ 

D、①②③④

题型:单项选择题

容灾等级通用的国际标准SHARE78将容灾分成了六级。

更多题库