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 157 46.9%
2 United States 75 22.4%
3 Germany 35 10.4%
4 Canada 30 9%
5 Japan 6 1.8%
6 Taiwan 5 1.5%
7 Singapore 5 1.5%
8 Thailand 3 0.9%
9 Russia 3 0.9%
10 Hong Kong 3 0.9%
11 Malaysia 2 0.6%
12 Czech Republic 2 0.6%
13 Ukraine 2 0.6%
14 Spain 2 0.6%
15 Portugal 2 0.6%
16 Romania 1 0.3%
17 Brazil 1 0.3%
18 Moldova, Republic of 1 0.3%