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 89 55.6%
2 United States 23 14.4%
3 Netherlands 13 8.1%
4 Russia 6 3.8%
5 Hong Kong 6 3.8%
6 France 5 3.1%
7 Germany 4 2.5%
8 Canada 4 2.5%
9 Taiwan 3 1.9%
10 Czech Republic 2 1.2%
11 Japan 1 0.6%
12 Malaysia 1 0.6%
13 Moldova, Republic of 1 0.6%
14 Singapore 1 0.6%
15 Romania 1 0.6%