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 242 55.1%
2 United States 120 27.3%
3 Germany 28 6.4%
4 Canada 18 4.1%
5 Malaysia 6 1.4%
6 Taiwan 4 0.9%
7 Hong Kong 3 0.7%
8 India 3 0.7%
9 Italy 2 0.5%
10 Brazil 2 0.5%
11 United Kingdom 2 0.5%
12 France 2 0.5%
13 Netherlands 2 0.5%
14 Russia 2 0.5%
15 Singapore 1 0.2%
16 Czech Republic 1 0.2%
17 Japan 1 0.2%