更多"What forms of radiation are feared "的相关试题:
[单项选择]What forms of radiation are feared by astronauts
A. Radiation from the sun.
B. Radiation from the Van Allen Belts.
C. Radiation from the meteors.
D. Both A andB.
[单项选择]What was the most important job for the astronauts of Discovery
A. Spacewalking.
B. Replacing the broken flywheel.
C. Entering the International Space Station.
D. Contacting the ground controllers.
[单项选择]Astronauts receive extensive training to prepare themselves both physically and psychologically for complexity and rigor of a space mission.
[单项选择]How many astronauts will be on board
A. 2
B. 3
C. 4
D. 5
[单项选择]How many astronauts died in the Columbia incident
A. Five
B. Six
C. Seven
D. Eight
[单项选择]When did NASA first sent astronauts to the moon
A. 30 years ago
B. 31 years ago
C. 32 years ago
D. 33 years ago
[单项选择]The three astronauts have splashed down in the Pacific Ocean, only six miles from the aircraft carrier that was ______ for the recovery mission.
A. dispatched
B. deposited
C. deployed
D. delivered
[单项选择]The two astronauts have splashed down in the Pacific Ocean, only five miles from the aircraft carrier that was______ for the recovery mission.
A. detach
B. dispatched
C. devote
D. dismantled
[单项选择]Training astronauts（）not an easy thing.
A. are
B. is
C. were
D. be
