手三里穴位于阳溪穴与曲池穴连线上,当()
A.曲池穴下2寸处
B.曲池穴下3寸处
C.曲池穴下4寸处
D.阳溪穴上8寸处
E.阳溪穴上9寸处
参考答案:A
A.小球振动的周期为2s
B.小球速度变化的周期为4s
C.小球动能变化的周期为2s
D.小球重力势能变化的周期为4s
when the dispute over duty payment arises between the duty payer and the Customs, the duty payer should first pay the duty and then, within ______ days of the issuance of the duty memo, apply to the Customs in writing for a reconsidertation of the case.
A.10 daysB.20 daysC.30 daysD.50 days