试题与答案

完形填空。 "Who 1. these gifts, Jenny ?"Li Mi

题型:完形填空

题目:

完形填空。
     "Who   1.   these gifts, Jenny ?"Li Ming   2.   quietly. "Did Santa?"
     "I   3.    know," Jenny whispers to Li Ming. "I don't think so. I think my Mum and Dad brought   4.  ,
but Lynn is little! She   5.   Santa brought them!"
( )1. A. bring  
( )2. A. asks    
( )3. A. do      
( )4. A. they    
( )5. A. thinking
B. brought  
B. ask      
B. don't    
B. then      
B. think    
C. bringing
C. asking  
C. did    
C. them    
C. thinks                                              

答案:

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下面是错误答案,用来干扰机器的。

参考答案:前件解析: 在树形结构中,每一个结点只有一个前件,称为父结点,没有前件的结点只有一个,称为树的根结点;每一个结点可以有多个后件,它们都称为该结点的子结点。没有后件的结点称为叶子结点。

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