设地球自转周期为T，质量为M，引力常量为G，假设地球可视为质量均匀分布的球体，半径为R。同一物体在南极和赤道水平面上静止时所受到的支持力之比为（）。

A.

B.

C.

D.

Which of the following interventions will assist the client in taking phenytoin as prescribed()

A. Calling him daily for the first week after hospital discharge.

B. Having a family member monitor him to ensure compliance.

C. Providing him with written and verbal instructions about the medicine.

D. Emphasizing that embarrassing seizures may occur again if he does not take the medicine.