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 669 63.1%
2 United States 156 14.7%
3 Netherlands 110 10.4%
4 Germany 45 4.2%
5 Canada 19 1.8%
6 Hong Kong 14 1.3%
7 Russia 12 1.1%
8 Korea, Republic of 11 1%
9 Japan 7 0.7%
10 Taiwan 4 0.4%
11 Singapore 2 0.2%
12 Portugal 2 0.2%
13 France 2 0.2%
14 Australia 2 0.2%
15 Bulgaria 2 0.2%
16 India 1 0.1%
17 Ireland 1 0.1%
18 Israel 1 0.1%
19 Macao 1 0.1%