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 347 45.9%
2 United States 173 22.9%
3 Netherlands 139 18.4%
4 Germany 52 6.9%
5 Canada 12 1.6%
6 Russia 8 1.1%
7 India 5 0.7%
8 Hong Kong 4 0.5%
9 Malaysia 3 0.4%
10 France 3 0.4%
11 Ukraine 3 0.4%
12 United Kingdom 3 0.4%
13 Singapore 1 0.1%
14 Turkey 1 0.1%
15 Australia 1 0.1%
16 Moldova, Republic of 1 0.1%