若25x2-mxy+9y2是完全平方式,则m的值为_______________

题型:填空题

问题:

若25x2-mxy+9y2是完全平方式,则m的值为___________________

考点:整式的定义整式的加减单项式多项式同类项
题型:填空题
完形填空  阅读短文,从每题所给选项中选出可以填入空白处的最佳选项
         A woman is going shopping. She is going 1 boat. The boat is going across (穿过) the river. Her
basket is empty(空的). Oh dear! Look! Her basket is in the 2 ."Help!" she says."Look! My basket is in
the river."
         A boy sees the basket. He says, "Don't worry! I can 3 it! I'm a very good swimmer." He takes off
his shoes and shirt. "Look 4 my shirt and shoes, please!" he says and then jumps into the river. www.
ryedu.net   
         A 5 sees the basket. "I can go by basket!” it thinks. It gets to the basket. The boy 6 in the river.
"Where's the basket?" he calls:"It's over there!" calls the woman. "It's behind you!" It's 7 that duck!
The boy gets to the basket."Go away!" he says to the duck. The duck 8 out of the basket and swims
away. The boy takes the basket to the land. "Oh, thank you!" says the woman. "Thank you very much!"   
        "Not at all!" says the boy." 9 you like to give me my shirt and shoes?"   "Yes, here you are. Oh,
what's in the basket? It's the duck's 10 ."
( )1. A. on            
( )2. A. water        
( )3. A. clean        
( )4. A. after        
( )5. A. dog           
( )6. A. is fishing    
( )7. A. beside        
( )8. A. climbs        
( )9. A. Are          
( )10. A. meat        
B. in      
B. boat    
B. buy      
B. at        
B. chicken  
B. is swimming
B. under    
B. comes    
B. Do      
B. hair      
C. by          
C. ship       
C. do          
C. for        
C. duck        
C. is playing  
C. on          
C. jumps      
C. Would      
C. hand          
D. to              
D. tree            
D. get            
D. like            
D. monkey          
D. is flying      
D. behind          
D. walks          
D. Could          
D. egg            
题型:填空题

CT与常规X线摄影相比,优点是

A.空间分辨率高

B.密度分辨率高

C.X线剂量小

D.没有伪影

E.不需要胶片

题型:填空题

组成精浆的主要成分不含有()

A.前列腺液

B.精囊液

C. * * 球腺液

D. * * 旁腺液

E.黏液

题型:填空题

下列选项中属于物理的配伍变化是()

A.混浊、沉淀或分层 

B.吸湿、潮解、液化或结块 

C.吸附 

D.变色 

E.产气

题型:填空题

下列关于肾病综合征的描述哪型不正确()

A.肾病综合征尿蛋白大于3.5g/d

B.肾病综合征易发生血栓栓塞并发症,以肺血管血栓栓塞最常见

C.膜性肾病极易发生血栓栓塞并发症

D.儿童原发性肾病综合征常见的病理类型为微小病变型肾病

E.老年人常见的肾病综合征的病理类型为膜性肾病

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