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 170 44%
2 United States 131 33.9%
3 Germany 36 9.3%
4 Canada 26 6.7%
5 Japan 5 1.3%
6 Chile 3 0.8%
7 Singapore 3 0.8%
8 Taiwan 3 0.8%
9 Netherlands 2 0.5%
10 Russia 2 0.5%
11 Hong Kong 2 0.5%
12 Ireland 1 0.3%
13 Moldova, Republic of 1 0.3%
14 Brazil 1 0.3%