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 177 43.2%
2 United States 93 22.7%
3 Germany 40 9.8%
4 Mexico 38 9.3%
5 Netherlands 26 6.3%
6 Canada 14 3.4%
7 Singapore 7 1.7%
8 Brazil 4 1%
9 Colombia 4 1%
10 France 2 0.5%
11 Luxembourg 2 0.5%
12 Russia 1 0.2%
13 Moldova, Republic of 1 0.2%
14 India 1 0.2%