中国大学MOOC: In the traditional Chinese calendric system, years are designated by _______ Heavenly Stems and _________ Earthly Branches.

In the traditional Chinese calendric system, years are designated by _______ Heavenly Stems and _________ Earthly Branches. A: 12; 10 B: 10; 12 C: 10; 10 D: 12; 12

Which of the following belong to intangible cultural heritage? A: the traditional oral literature and its language B: the traditional arts, calligraphy, music, dance, opera, folk vocal art forms rich in local flavor, and acrobatics C: the traditional craftsmanship, medicine and calendric system D: the traditional folklore such as etiquette and festival activities