【单选题】During the 2nd and 3rd centuries AD, at the downfal of the Han Dynasty, Han Confucianism was influenced by Taoism and also by , a philosophy then new to China.
【简答题】The features of green materials are(the 2nd question out of 3) : 2. they bring ___________________ to the natural environment, during its production and after-use.
【单选题】During the 2nd and 3rd centuries AD, at the downfal of the Han Dynasty, Han Confucianism was influenced by Taoism and also by , a philosophy then new to China.