5. Astronauts are always in space suits because exposing human beings to the cold, airless environment of space is _____.
(A) illegitimate
(B) lethal (C ) sustainable
(D) gravitational
詳解 (共 1 筆)
未解鎖
Astronauts are alway...
私人筆記 (共 1 筆)
未解鎖
illegitimate 不合法的,私生...