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 72 54.5%
2 Netherlands 20 15.2%
3 United States 18 13.6%
4 France 8 6.1%
5 Germany 5 3.8%
6 Russia 3 2.3%
7 Hong Kong 2 1.5%
8 Czech Republic 1 0.8%
9 Singapore 1 0.8%
10 Taiwan 1 0.8%
11 New Zealand 1 0.8%