BPG致力于知识的发现和传播
Total Visits of This Article
2021 | 总访问次数
排名 国家/地区 数量 占比
1 China 158 54.7%
2 United States 52 18%
3 Germany 36 12.5%
4 Korea, Republic of 12 4.2%
5 Taiwan 8 2.8%
6 Netherlands 8 2.8%
7 Hong Kong 7 2.4%
8 Canada 2 0.7%
9 Norway 2 0.7%
10 Australia 1 0.3%
11 Moldova, Republic of 1 0.3%
12 India 1 0.3%
13 Japan 1 0.3%