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 280 50.4%
2 United States 144 25.9%
3 Germany 32 5.8%
4 Canada 26 4.7%
5 Taiwan 15 2.7%
6 Korea, Republic of 8 1.4%
7 Hong Kong 8 1.4%
8 Singapore 7 1.3%
9 Netherlands 6 1.1%
10 Russia 6 1.1%
11 Ireland 4 0.7%
12 Japan 3 0.5%
13 United Kingdom 3 0.5%
14 Macao 2 0.4%
15 Malaysia 2 0.4%
16 Israel 2 0.4%
17 Colombia 2 0.4%
18 Czech Republic 1 0.2%
19 France 1 0.2%
20 Poland 1 0.2%
21 Spain 1 0.2%
22 Sweden 1 0.2%
23 Ukraine 1 0.2%