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 293 47.4%
2 United States 117 18.9%
3 Netherlands 108 17.5%
4 Germany 52 8.4%
5 Canada 19 3.1%
6 Australia 5 0.8%
7 France 4 0.6%
8 India 3 0.5%
9 Singapore 3 0.5%
10 South Africa 2 0.3%
11 New Zealand 2 0.3%
12 Italy 2 0.3%
13 Korea, Republic of 2 0.3%
14 Malaysia 2 0.3%
15 Moldova, Republic of 2 0.3%
16 Taiwan 1 0.2%
17 Ukraine 1 0.2%