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 198 62.7%
2 Germany 46 14.6%
3 United States 41 13%
4 Taiwan 5 1.6%
5 Netherlands 4 1.3%
6 India 4 1.3%
7 Australia 4 1.3%
8 Korea, Republic of 3 0.9%
9 Russia 3 0.9%
10 Canada 3 0.9%
11 United Kingdom 2 0.6%
12 Hong Kong 1 0.3%
13 Brazil 1 0.3%
14 Costa Rica 1 0.3%