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 614 62.1%
2 United States 147 14.9%
3 France 60 6.1%
4 Germany 56 5.7%
5 Russia 37 3.7%
6 Canada 26 2.6%
7 Korea, Republic of 17 1.7%
8 Hong Kong 9 0.9%
9 India 4 0.4%
10 Japan 3 0.3%
11 Netherlands 3 0.3%
12 United Kingdom 3 0.3%
13 Switzerland 2 0.2%
14 Viet Nam 2 0.2%
15 Norway 1 0.1%
16 Portugal 1 0.1%
17 Singapore 1 0.1%
18 Malaysia 1 0.1%
19 Azerbaijan 1 0.1%