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 310 75.2%
2 United States 36 8.7%
3 Germany 27 6.6%
4 Taiwan 6 1.5%
5 Singapore 6 1.5%
6 Canada 5 1.2%
7 Hong Kong 4 1%
8 Malaysia 3 0.7%
9 3 0.7%
10 South Africa 2 0.5%
11 Spain 2 0.5%
12 Korea, Republic of 2 0.5%
13 Romania 2 0.5%
14 United Kingdom 1 0.2%
15 Czech Republic 1 0.2%
16 Netherlands 1 0.2%
17 Kenya 1 0.2%