How many p_ does a football match have 填people person

相关推荐

• It’s winter.Many people feel sick.Look at Zoom and and his mother.They’re in the hospital.Doctor:Good morning,Zoom.How are you?Zoom:I feel sick.Doctor:Oh,I’m sorry to hear that.What’s the matter?Zoom:I think I have a flu.Doctor:Have you got a headache?Zoom:No,I haven’t.Doctor:Have you got a sore throat.Zoom:No,I haven’t.Doctor:Does your nose hurt?Zoom:No.Doctor:Oh,I know.Do you like football games?Zoom:Yes,I do.Very much.Doctor:I see.There is a footba
• How many p_ does a football match have 填people person
• How many p_ does a football match have 填people person
• 设匀强磁场的磁感应强度B为0.5T,导体在磁场中的有效长度为40Cm,导体向右做切割磁感线运动,产生感应电动势的大小为2V,导体电阻R为4Ω,求（1）导体运动速度（2）感应电流的大小和方向（3）电阻消耗的功率.
• 20课詹天佑第四题的第3小题怎样做