Premier Li Keqiang called for “mass entrepreneurship and innovation” and made it the leading agenda of China's national economic strategy. ... China has grown to become the world's second-largest economy in merely three decades, and entrepreneurship has been identified as a key driver of China's fast growth.
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Answer: Vivian and Janet have encountered  the need for explanation, a challenge to intercultural relationships.
Explanation:
Vivian, as an African American, has to explain how she became friends with Janet, an European American, because people assume that cultural differences between African Americans and European Americans are too big to be overcome. 
 
        
             
        
        
        
The Mayans mainly lived where there were no lakes or rivers. Because of that, they had to do something to adapt or they wouldn't survive. They adapted to their environment by doing things like collecting rain water to use for crops.
        
             
        
        
        
Answer:
Execution.
Explanation:
The cycle needs something to execute and to continue the process.  The ALU performs calculations on data which makes the execution process of the machine cycle.
 
        
             
        
        
        
Answer: Collective conscience
Explanation:
  The collective conscience is the process of understanding the various types of social related norms in the society and also helps in providing the moral unity. 
 The main objective of the collective conscience is that it explain about the certain types of freedom like the freedom of the religion and the speech. It is the set of moral ideas and the attitude that helps in creating the various types of social phenomenon.     
  Therefore, Collective conscience is the correct answer.