阿摩線上測驗
25. An extreme geomagnetic storm, classed as the highest G5, could potentially impact ________, including road structure, satellites, and the power grid, the National Oceanic and Atmospheric Administration warned.
(A) infrastructure
(B) environment
(C) institution
(D) construction
答案：登入後查看
統計： A(47), B(12), C(5), D(24), E(0) #3440815
統計： A(47), B(12), C(5), D(24), E(0) #3440815
