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 332 52.1%
2 United States 242 38%
3 Germany 26 4.1%
4 Canada 12 1.9%
5 Taiwan 8 1.3%
6 Hong Kong 5 0.8%
7 Russia 4 0.6%
8 France 2 0.3%
9 Czech Republic 1 0.2%
10 India 1 0.2%
11 Japan 1 0.2%
12 Macao 1 0.2%
13 Romania 1 0.2%
14 Singapore 1 0.2%