第五十条 办理退（免）税的出口业务发生销售折让、中止或者退回等情形的，纳税人应当缴回已退（免）税款。
'Extraordinary' scale
，这一点在safew官方版本下载中也有详细论述
6、Data + AI 一体化开发
Science & Environment
New analysis of Apollo Moon samples finally settles debate: « For decades, scientists have argued whether the Moon had a strong or weak magnetic field during its early history (3.5 - 4 billion years ago). Now a new analysis shows that both sides of the debate are effectively correct. »
· 杨勇 · 来源：tutorial资讯