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 159 48.5%
2 United States 71 21.6%
3 Germany 36 11%
4 Netherlands 31 9.5%
5 Taiwan 8 2.4%
6 Canada 6 1.8%
7 Hong Kong 4 1.2%
8 Malaysia 3 0.9%
9 Russia 3 0.9%
10 Singapore 2 0.6%
11 France 2 0.6%
12 Australia 1 0.3%
13 India 1 0.3%
14 Romania 1 0.3%