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 246 63.6%
2 United States 62 16%
3 Germany 29 7.5%
4 Canada 21 5.4%
5 Hong Kong 9 2.3%
6 Australia 7 1.8%
7 Russia 3 0.8%
8 Singapore 2 0.5%
9 Netherlands 2 0.5%
10 Spain 1 0.3%
11 Taiwan 1 0.3%
12 Czech Republic 1 0.3%
13 France 1 0.3%
14 Japan 1 0.3%
15 Moldova, Republic of 1 0.3%