探究“光对鼠妇生活的影响”时,一般采取的研究方法是()。 A.模拟实验法 B.调查法

题型:单项选择题

问题:

探究“光对鼠妇生活的影响”时,一般采取的研究方法是()。

A.模拟实验法

B.调查法

C.观察实验法

D.资料分析法

考点:初级中学生物生物学科学研究方法及生物学科发展生物学科学研究方法及生物学科发展题库
题型:单项选择题
完形填空。
     Everyone has his or her own dream and everyone is trying his or her best to realize it.
     On the morning of May 20th, 1927, Charles took off from the muddy (泥泞的) airfield in New York
 and _1_ Paris. Fourteen hours later, he was still _2_. During the fourteen hours he had some
 nervour __3_. The fog was so thick that he could hardly see anything. _4_, he was not afraid.
 He had flown a plane many times and knew _5_ to deal with the problems. Now he had _6_ to
 do but go on.
     It was not easy for him to _7_ this trip. He waited for a long time. However, he never _8_ his
 dream.  At last he told himself that a non-stop flight between New York and Paris was possible. And
 now he was above the Atlantic. As he flew _9__ the surface of the water, he could see the waves in the
 moonlight. The _10_ of the water seemed like music in his ears. He _11_ his plane as his partner.
     After thirty-seven hours in the air _12_ sleep, Charles successfully landed in Paris. He began to 
 _13_ a little. He smiled and spoke to himself,  "I made it. My dream came true." More than a thousand
 people were there to _14_ him as a hero. He became _15_ overnight. His name was on
 everyone's lips and he even appeared on TV.
( )1. A. looked for  
( )2. A. climbing  
( )3. A. times  
( )4. A. Instead
( )5. A. how    
( )6. A. everything
( )7. A. make   
( )8. A. took up  
( )9. A. near  
( )10. A. sound  
( )11. A. lost  
( )12. A. with   
( )13. A. worry  
( )14. A. see    
( )15. A. happy  
B. broke off
B. running    
B. speeches  
B. Also      
B. what      
B. nothing    
B. refuse    
B. began with
B. close      
B. noise      
B. flew      
B. for        
B. relax      
B. watch      
B. worried   
C. set off  
C. flying
C. moments  
C. Therefore  
C. when
C. anything  
C. catch
C. gave up  
C. up  
C. voice
C. regarded  
C. without  
C. explain
C. welcome  
C. famous
D. headed for    
D. jumping      
D. words        
D. However       
D. where         
D. something     
D. follow        
D. made up       
D. high          
D. song          
D. looked        
D. on            
D. sleep        
D. visit         
D. surprised                 
题型:单项选择题

甲、乙、丙、丁四人平均有邮票38张,甲与乙的平均张数是42,乙、丙、丁三人平均张数是36,求乙有邮票多少张?

题型:单项选择题

设计一个新的测试用例,使其仅覆盖()尚未被覆盖的无效等价类。

A、一个

B、两个

C、三个

D、尽可能多的

题型:单项选择题

已知关于x的一元二次方程x2+3=4x,若用配方法解该方程,则配方后的方程是[ ]

A.(x﹣2)2=7

B.(x﹣2)2=1    

C.(x+2)2=1   

D.(x+2)2=2

题型:单项选择题

日常生活中的细枝末节,与缓解全球气候变暖的大局息息相关。“选择绿色的生活方式,只在举手之劳间:换用节能灯、使用再生纸……我们能否逃脱全球气候变化带来的各种灾难?答案由你我的行动决定!”这告诉我们:[ ]

①矛盾普遍性和特殊性相互联结

②辩证的否定要求我们树立创新意识

③必须重视局部作用,推动整体的发展

④重视量的积累,为实现质变创造条件

A、①②

B、①③

C、②④

D、③④

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