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 212 73.9%
2 United States 31 10.8%
3 Germany 17 5.9%
4 Netherlands 9 3.1%
5 Russia 3 1%
6 Hong Kong 3 1%
7 India 2 0.7%
8 Georgia 2 0.7%
9 Austria 2 0.7%
10 Brazil 2 0.7%
11 Singapore 2 0.7%
12 Lithuania 1 0.3%
13 Moldova, Republic of 1 0.3%