I found 120 algorithms for the Megaminx based on the Ih point group. In turn, these 120 algorithms can represent the Ih point group. For example, if B1W3B1A1B4W4B4W1B1A4B4W4B1W3B4 represents e, then C1W3C1B1C4W4C4W1C1B4C4W4C1W3C4 represents W . Therefore, there are 120 such algori ...
这是一种小一点的鹅( The Cackling Geese ),脖子也短一点 文献说: When it comes to North American geese, distinguishing Cackling from Canada is perhaps the most challenging ID. The two birds are virtually identical—so much so that until 2004 , they were considered one species:  ...