Then 2 SOPS contacts each GPS satellite regularly with a navigational update (using the ground antennas at Ascension Island, Diego Garcia, Kwajalein, and Colorado Springs).

• 持这一观点的人认为，长寿人群和家族可以将对疾病的抗拒力遗传给子女，使他们患病后比他人更加容易康复。