56.According to the passage, which is not true about astronauts?
(A) Every organ system is impacted after a space journey.
(B) Some physiological changes can be found after a space travel.
(C) There are no symptoms of blood disorders during a space travel.
(D) Astronauts’ experiences of a space travel can give information for scientists to research into diseases.
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統計: A(11), B(12), C(82), D(9), E(0) #3262852
統計: A(11), B(12), C(82), D(9), E(0) #3262852