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 433 51.3%
2 United States 158 18.7%
3 Netherlands 87 10.3%
4 Germany 55 6.5%
5 Russia 46 5.5%
6 Canada 18 2.1%
7 Korea, Republic of 16 1.9%
8 India 5 0.6%
9 France 4 0.5%
10 Singapore 3 0.4%
11 United Kingdom 3 0.4%
12 United Arab Emirates 2 0.2%
13 Turkey 2 0.2%
14 Saudi Arabia 2 0.2%
15 Portugal 2 0.2%
16 Romania 2 0.2%
17 Hong Kong 2 0.2%
18 Indonesia 1 0.1%
19 Australia 1 0.1%
20 Norway 1 0.1%
21 Ukraine 1 0.1%