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对测试阶段中没有发现的错误所进行的测试、诊断、定位、纠错以及验证修改的回归测试过程被称为 【5】 性维护。

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参考答案：校正

单项选择题

下列选项中，不属于电子商务系统中社会保障子系统的内容的是

A．税收政策

B．法律法规

C．企业的规章制度

D．个人的消费习惯
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填空题
短文填词。阅读下面短文，根据以下提示：1）汉语提示，2）首字母提示，3）语境提示，在每个空格
内填入一个适当的英语单词，并将该词完整地写在右边相对应的横线上。所填单词要求意义准确，拼
写正确。
     Keeping a diary in English is an effective way to improve               
English writing skill. _______ (比较) with other forms of writing,      
it can help you to develop the _______ (习惯) of thinking in English,  
which is of great u_______ in learning English. Of course, you          
will _______ with many difficulties. First, you may have trouble       
_______ (找到) proper words and phrases to express your minds.        
Second, there are many phrases and sayings in Chinese, _______        
are hard _______ you to translate in English. My suggestion is that   
you should have a _______ (字典) at hand so that you can use it         
whenever it is needed. You can also t_______ to your teacher if necessary. 
If you stick to doing so, you’ll g_______ make progress in writing.   
1. __________        
2. __________        
3. __________      
4. __________       
5. __________                       
6. __________       
7. __________        
8. __________        
9. __________         
10. __________    
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