According to qian long, why are european missionary activities restricted in china?

According to Qian Long, European missionary activities are restricted in China because the Chinese religion is an ancient tradition that doesn't need to change, in other words, he feels that Chinese religion is fine as it is.

The Qianlong Emperor was the sixth  man who served as emperor of the Manchu-led Qing dynasty, and the fourth Qing emperor to rule over China proper. He ruled officially from 11 October 1735 to 8 February 1796.

According to qian long, European missionary activities are restricted in China because foreign and new philosophical-religious doctrines were often suspected by Chinese society as a threat to national security. In the ninth century, even Buddhism suffered persecution. In this eastern society, culture, Chinese-inspired Confucian rites, traditional Chinese religions, and national sovereignty were inextricably linked.

research question: do the predicted benefits of genetic enhancements outweigh the possible negative consequences of this technology?  

what information do i need to research in order to answer this question?  

-predicted benefits of genetic enhancements

-negative consequences of genetic enhancements

-existing, if any, consequences of the new technology

-possible consequences if the technology is perfected

what sources will have the information?

-scientific research documents or news articles summarizing research

-articles in science and medical journals, magazines, and electronic databases

-books

-experts at genetics: geneticists, scientists, professors

here you go have a nice day

the two sonnets of sidney most closely follows the division between the octave and the sestet are the astrophel and stella sonnets.