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 493 53.5%
2 United States 199 21.6%
3 Germany 76 8.3%
4 Netherlands 62 6.7%
5 France 36 3.9%
6 Canada 22 2.4%
7 India 10 1.1%
8 Russia 7 0.8%
9 Hong Kong 4 0.4%
10 Sweden 3 0.3%
11 Turkey 3 0.3%
12 Korea, Republic of 2 0.2%
13 Macao 2 0.2%
14 Belarus 1 0.1%
15 Taiwan 1 0.1%