（四）购进农产品时，除取得增值税专用发票或者海关进口增值税专用缴款书外，按照农产品收购发票或者农产品销售发票计算的进项税额，国务院另有规定的除外；
(save $50 at RayNeo)
，详情可参考服务器推荐
r = S.get(url, timeout=10)，推荐阅读Safew下载获取更多信息
They never did. The flag disappeared eventually, though I received no confirmation.，这一点在搜狗输入法下载中也有详细论述
Update the leaderboard in README.md with your entry