What is the surname of Baijia? . All of them.

1) indicates that the surnames of numbers are: one, two, three, four, five, six, seven, eight, nine, ten, one, two, three, four, five, six, seven, eight, zero, hundred, thousand and ten thousand. (2) Surnames indicating seasons, solar terms and meteorology are: spring, summer, autumn, winter, yin, yang, day, month, year, season, hour, minute, second, wind, cloud, thunder, electricity, rain, snow and ice. (3) Surnames indicating direction and orientation are: East, South, West, North, Up, Down, Left, Right, Front, Back, High, Low, East, West Gate, Gong Bei, South China, etc. (4) The surnames of historical dynasties are Xia, Shang, Zhou, Qin, Han, Jin, Wei, Shu, Wu, Liang, Qi, Chen, Sui, Tang, Song, Yuan, Ming, Jin and Qing. (5) Surnames indicating the abbreviations of place names of provinces, cities and autonomous regions in China are: Beijing, Tianjin, Shanghai, Hebei, Shandong, Henan, Jiangsu, Anhui, Shanxi, Guangxi, Hunan, Hubei, Fujian, Sichuan, Zhejiang, Gansu, Ningxia, Shaanxi, Kyrgyzstan, Liaoning, Heilongjiang and Taiwan Province. (6) The surnames representing the appellations of various ethnic groups in China are: Han, Manchu, Mongolian, Hui, Tibetan, Miao, Yi, Dong, Yao, Bai, Li, Tu, Qiang, Anger and Zhuang. (7) The surnames of various industries are: industry, agriculture, commerce, learning, military, art, teacher, pottery, iron, medicine, fighting, medicine, slaughter, etc. (8) Surnames representing various colors are: red, orange, yellow, green, blue, purple, red, black, white, gray, black, Dan, Zhu and so on. (9) The surnames of heavenly stems and earthly branches are: A, B, C, D, E, Ji, G, Xin, Ren, Gui, Zi, Ugly, Yin, Mao, Chen, Si, Wu, Wei, Shen, You, Xu and Hai. (I0) The surnames representing the five elements and the five permanent members are: Jin, Mu, Shui, Huo, Tu, Ren, Yi, Li, Zhi and Xin. (1 1) indicates that the surnames of Wuyin and Hardware are: Gong, Shang, Jiao, Zheng, Jade, Gold, Silver, Copper, Iron, Aluminum, etc. (12) indicates that the surnames of six animals and four animals are: cow, horse, pig, sheep, dog, chicken, dragon, phoenix, crane, forest, etc. (13) indicates that the surnames of wuyue and are: Tai, Hua, Heng, Heng, Song, Jiang, He, Hu and Hai. (14) The surnames of all the fruits of the five grains are: hemp, millet, millet, wheat, bean, peach, plum, apricot, pear and fruit. (15) indicates that the surnames of "three friends of the old cold" and the four gentlemen of flowers and plants are: pine, bamboo, plum, orchid, chrysanthemum and so on. (16) The surnames of human relations relatives are: ancestor, ancestor, father, son, male, grandson, uncle, old, mother, aunt, sister, etc. (17) The surnames of human parts are: head, bone, ear, eye, mouth, tongue, tooth, gallbladder, foot, skin, hair, etc. (18) Surnames indicating animal names include: bear, wolf, tiger, snake, insect, fish, chicken, duck, goose, cow, horse, donkey, cat, deer, etc. (19) The official surnames are Wang, Gong, Hou, Bo, Wei, Sima, Situ, Du, Yin, Qing and Equality.

Seeking adoption is a satisfactory answer.