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 514 46.3%
2 United States 212 19.1%
3 Netherlands 184 16.6%
4 Germany 82 7.4%
5 France 41 3.7%
6 Canada 18 1.6%
7 Taiwan 16 1.4%
8 Sweden 10 0.9%
9 Ukraine 7 0.6%
10 United Kingdom 5 0.5%
11 Hong Kong 4 0.4%
12 India 3 0.3%
13 Norway 3 0.3%
14 Indonesia 2 0.2%
15 Korea, Republic of 2 0.2%
16 Moldova, Republic of 1 0.1%
17 Brazil 1 0.1%
18 Djibouti 1 0.1%
19 Finland 1 0.1%
20 Romania 1 0.1%
21 Russia 1 0.1%