A: The maniement stats are based only je randomly-rolled, legendary weapons. Q: Can you explain the letter ranks that are given based on these stats?极光常常出现于纬度靠近地磁极地区上空，一般呈带状、弧状、幕状、放射状，这些形状有时稳定有时作连续性变化。极光产生的条件有三个：大气、磁