Again trilateration clearly show this mathematically.The correct position of the car GPS Navigation receiver is the one that is closest to the fourth sphere.

• 若是对于药物的服用时间和时长有疑问，应在诊问时询问医师，包含每项药物治疗的症状、能否自行停药等，若是在诊问时没来得及问医师，也可询问执业药师。