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 494 48.3%
2 United States 198 19.4%
3 Netherlands 186 18.2%
4 Germany 64 6.3%
5 France 35 3.4%
6 Canada 24 2.3%
7 Ukraine 4 0.4%
8 Hong Kong 4 0.4%
9 United Kingdom 3 0.3%
10 Korea, Republic of 2 0.2%
11 Singapore 2 0.2%
12 Taiwan 2 0.2%
13 India 1 0.1%
14 Norway 1 0.1%
15 Romania 1 0.1%
16 Russia 1 0.1%