astronauts in spacesuits neednt worry about radiation damage 正确答案:----- 13 The harm radiation has done to the Apollo crew member ______. a. is insignificant b. seems overestimated c. is enormo
astronauts in spacesuits needn’t worry about radiation damage
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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
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protection from space radiation is no easy job
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astronauts will have deformed children or grandchildren
正确答案:-----
radiation is not a threat to well-protected space explorers
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15 The best title for this passage would be ______.The Atmosphere and Our Environment
正确答案:-----
Research on Radiation
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正确答案:-----
正确答案:-----
Effects of Space Radiation
