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 129 50.6%
2 United States 71 27.8%
3 Netherlands 31 12.2%
4 Germany 6 2.4%
5 France 4 1.6%
6 United Kingdom 3 1.2%
7 Russia 2 0.8%
8 Canada 2 0.8%
9 Estonia 2 0.8%
10 Korea, Republic of 2 0.8%
11 Moldova, Republic of 1 0.4%
12 India 1 0.4%
13 Ukraine 1 0.4%