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 347 47.6%
2 United States 144 19.8%
3 Netherlands 108 14.8%
4 Germany 73 10%
5 Canada 14 1.9%
6 France 12 1.6%
7 Norway 10 1.4%
8 India 5 0.7%
9 Russia 3 0.4%
10 United Kingdom 2 0.3%
11 Hong Kong 2 0.3%
12 Korea, Republic of 2 0.3%
13 Macao 2 0.3%
14 Finland 2 0.3%
15 Moldova, Republic of 1 0.1%
16 Romania 1 0.1%
17 Singapore 1 0.1%