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 169 45.9%
2 United States 100 27.2%
3 Germany 45 12.2%
4 Netherlands 28 7.6%
5 Hong Kong 6 1.6%
6 Canada 3 0.8%
7 Malaysia 3 0.8%
8 Belarus 2 0.5%
9 Korea, Republic of 2 0.5%
10 Norway 2 0.5%
11 Panama 2 0.5%
12 Senegal 2 0.5%
13 Spain 2 0.5%
14 Russia 1 0.3%
15 Australia 1 0.3%