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 49 47.6%
2 Netherlands 13 12.6%
3 United States 12 11.7%
4 France 7 6.8%
5 Germany 7 6.8%
6 Taiwan 6 5.8%
7 Russia 2 1.9%
8 Singapore 2 1.9%
9 Spain 1 1%
10 Hong Kong 1 1%
11 India 1 1%
12 Japan 1 1%
13 Moldova, Republic of 1 1%