[讨论]gwd 7-33

Q33:

The health benefits of tea have been the subject of much research; in addition to its possibilities for preventing and inhibiting some forms of cancer, the brewed leaves of Camellia sinensis may also play a role in reducing the risk of heart disease and stroke.

1. in addition to its possibilities for preventing and inhibiting
   
   
   
   
2. in addition to its possibilities to prevent or inhibit
   
   
   
   
   
3. besides the possibility that it prevents and inhibits
   
   
   

   
   

4. besides the possible preventing and inhibiting of
   
   
   

   
   

5. besides possibly preventing or inhibiting (key)
   
   
   

这道题besides作介词接的成分是动名词还是分词，我搞不清，按理是动名词前面应有the吧 .

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gwd 7-33
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