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 United States 40 34.2%
2 China 31 26.5%
3 Netherlands 16 13.7%
4 Korea, Republic of 5 4.3%
5 Italy 4 3.4%
6 United Kingdom 3 2.6%
7 Australia 3 2.6%
8 Canada 2 1.7%
9 Malaysia 2 1.7%
10 Germany 2 1.7%
11 Hong Kong 2 1.7%
12 Russia 2 1.7%
13 Singapore 1 0.9%
14 South Africa 1 0.9%
15 Spain 1 0.9%
16 Czech Republic 1 0.9%
17 France 1 0.9%