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 54 46.2%
2 United States 20 17.1%
3 Netherlands 19 16.2%
4 France 8 6.8%
5 Germany 4 3.4%
6 Hong Kong 4 3.4%
7 Czech Republic 2 1.7%
8 Malaysia 2 1.7%
9 Singapore 2 1.7%
10 Russia 1 0.9%
11 Kazakhstan 1 0.9%