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 186 57.1%
2 United States 68 20.9%
3 Germany 36 11%
4 Canada 21 6.4%
5 Sweden 2 0.6%
6 France 2 0.6%
7 Hong Kong 2 0.6%
8 Netherlands 2 0.6%
9 New Zealand 2 0.6%
10 Romania 2 0.6%
11 Russia 2 0.6%
12 Singapore 1 0.3%