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 216 50%
2 United States 147 34%
3 Germany 35 8.1%
4 France 11 2.5%
5 Netherlands 6 1.4%
6 New Zealand 3 0.7%
7 Bulgaria 3 0.7%
8 2 0.5%
9 Costa Rica 2 0.5%
10 Russia 2 0.5%
11 Singapore 2 0.5%
12 Korea, Republic of 2 0.5%
13 Luxembourg 1 0.2%