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 140 54.1%
2 United States 48 18.5%
3 Germany 37 14.3%
4 France 8 3.1%
5 Canada 5 1.9%
6 Taiwan 4 1.5%
7 Brazil 3 1.2%
8 Hong Kong 3 1.2%
9 Malaysia 2 0.8%
10 Turkey 2 0.8%
11 New Zealand 2 0.8%
12 Romania 2 0.8%
13 Russia 1 0.4%
14 Portugal 1 0.4%
15 Netherlands 1 0.4%