astronauts in spacesuits neednt worry about radiation damage 13 The harm radiation has done to the Apollo crew member ______. a. is insignificant b. seems overestimated c. is enormous d. remains unkno
astronauts in spacesuits needn’t worry about radiation damage
13 The harm radiation has done to the Apollo crew member ______.a. is insignificant b. seems overestimated
c. is enormous d. remains unknown
14 It can be inferred from the passage that ______.
the Apollo mission was very successful
protection from space radiation is no easy job
astronauts will have deformed children or grandchildren
radiation is not a threat to well-protected space explorers
15 The best title for this passage would be ______.The Atmosphere and Our Environment
Research on Radiation
Effects of Space Radiation