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 189 60.6%
2 United States 45 14.4%
3 Germany 35 11.2%
4 Canada 13 4.2%
5 Ireland 6 1.9%
6 Taiwan 3 1%
7 Ukraine 2 0.6%
8 Malaysia 2 0.6%
9 Portugal 2 0.6%
10 Saudi Arabia 2 0.6%
11 South Africa 2 0.6%
12 Italy 2 0.6%
13 France 2 0.6%
14 Argentina 2 0.6%
15 Australia 2 0.6%
16 Korea, Republic of 1 0.3%
17 Hong Kong 1 0.3%
18 Moldova, Republic of 1 0.3%