影响产量的因子有哪些?

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问题:

影响产量的因子有哪些?

考点:农学果树栽培学果树栽培学题库
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完形填空。
    Some people seem to have a secret for learning language. They can pick up new vocabulary, master
rules of grammar, and learn to write in the new language __1__ than others. Perhaps if we take a close
look at these successful language learners, we may discover a few __2__ which make language learning
easier for them.
     First of All, __3__ language learners are independent (独立的) learners. __4__, Successful language
learning is active learning. They look __5__ every chance to __6__ the language bravely. Finally,
successful language learners are learners with a purpose (目的).
     What kind of language learner __7__ you?
( )1. A. more quickly  
( )2. A. skill       
( )3. A. unsuccessful  
( )4. A. next        
( )5. A. at          
( )6. A. use       
( )7. A. is        
B. quickly    
B. skills  
B. successful  
B. first      
B. into    
B. make    
B. was      
C. slowly    
C. books      
C. beautiful  
C. in the end
C. after      
C. dance      
C. are        
D. more slowly
D. book        
D. outgoing    
D. At last    
D. for        
D. teach      
D. were        
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鸡马立克氏病的内脏肿瘤属于( )。

A.良性肿瘤

B.恶性肿瘤

C.骨瘤

D.纤维瘤

E.肉瘤

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10:______=4÷8=
14
()
=______%=______成.
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法律规则的逻辑结构

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农业法

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