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 525 53%
2 United States 203 20.5%
3 Netherlands 109 11%
4 Germany 58 5.9%
5 France 40 4%
6 Canada 23 2.3%
7 Korea, Republic of 6 0.6%
8 India 6 0.6%
9 Italy 4 0.4%
10 Hong Kong 4 0.4%
11 Russia 4 0.4%
12 Taiwan 2 0.2%
13 United Kingdom 2 0.2%
14 Argentina 2 0.2%
15 Brazil 1 0.1%
16 Lao People's Democratic Republic 1 0.1%
17 Malaysia 1 0.1%