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 193 54.5%
2 United States 52 14.7%
3 Germany 39 11%
4 Canada 36 10.2%
5 Korea, Republic of 13 3.7%
6 Ireland 6 1.7%
7 Hong Kong 4 1.1%
8 Finland 2 0.6%
9 France 2 0.6%
10 Singapore 2 0.6%
11 Russia 1 0.3%
12 Viet Nam 1 0.3%
13 India 1 0.3%
14 Chile 1 0.3%
15 Denmark 1 0.3%