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 342 68.4%
2 United States 86 17.2%
3 Germany 41 8.2%
4 Korea, Republic of 12 2.4%
5 Taiwan 5 1%
6 Ukraine 2 0.4%
7 New Zealand 2 0.4%
8 Singapore 2 0.4%
9 Hong Kong 2 0.4%
10 Denmark 2 0.4%
11 2 0.4%
12 Chile 1 0.2%
13 Turkey 1 0.2%