Indicators on lapura You Should Know
" or "Can you describe the differences between a Labrador and a Husky when it comes to temperament and physical exercise requires?"频率是单位时间内完成振动的次数，是描述振动物体往复运动频繁程度的量，为了纪念德国物理学家赫兹的贡献，人们把频率的单位命名为赫兹，简称“赫”。“You wi
" or "Can you describe the differences between a Labrador and a Husky when it comes to temperament and physical exercise requires?"频率是单位时间内完成振动的次数，是描述振动物体往复运动频繁程度的量，为了纪念德国物理学家赫兹的贡献，人们把频率的单位命名为赫兹，简称“赫”。“You wi