"So we surely noticed extra coordination within the activity past evening than we had seen in former days, as to who was dong that coordinating I am not in a position to convey nevertheless." indicative indicative present indef. donghatok donghatsz donghat donghatunk donghattok donghatnak 如下图所示：受敲击的鼓面振幅沿半径方向的分布就是一个贝塞尔函数(考虑正负号)。实际上，这些振动是... https://janisj777mfy0.blgwiki.com/user
