以下哪种元素可以作为半导体材料？
以下哪种元素可以作为半导体材料？
A.碳（C）
B.硅（Si）
C.磷（P）
D.砷（As）
正确答案：硅（Si）
- 1.Clay figurine can date back to the（）Period.
- 2.The Huishan Clay Figurine which stems from the western suburb of（）City, Jiangsu Province began in the Southern Dynasty and flourished in Ming Dynasty.
- 3.The fourth step of the process of tea ceremony is to（）tea leaves and then brew the tea.
- 4.The classification of Chinese tea can be divided into six types based on the degree of fermentation, that is, green tea ,（）, Oolong tea，dark tea, white tea, and yellow tea.
- 5.As our ancestors so rightly put it, “Firewood, rice, oil, salt,（）,（）and（）begin a day.”(请按答案首字母先后顺序填写，每个答案之间空一格，不加标点符号）
- 6.The Classic of Tea written by（）is an early work on tea, summarizing all knowledge of tea in China up to that date.
- 7.As is recorded in Shen Nung’s Herbal Pharmacopeia《神农本草经》, during the early Chou dynasty, tea in China was used mainly as（）.
- 8.People often beautify their homes with paper cuttings on（）.
- 9.During the process of paper cutting,（）methods are often used.
- 10.Paper cutting tools include（）.