We know from the passage that ________.
A.exposure to even tiny amounts of radiation is fatal
B.the effect of exposure to radiation is slow in coming
C.radiation is avoidable in space exploration
D.astronauts in spacesuits needn’t worry about radiation damage
试卷相关题目
- 1According to the first paragraph, the atmosphere is essential to man in that ________.
A.it protects him against the harmful rays from space
B.it provides sufficient light for plant growth
C.it supplies the heat necessary for human survival
D.it screens off the falling meteors
开始考试点击查看答案 - 2The sports meet, originally due to be held last Friday, was finally ________ because of the bad weather.
A.set off
B.broken off
C.worn off
D.called off
开始考试点击查看答案 - 3I have kept that portrait ________ I can see it every day, as it always reminds me of my university days in London.
A.which
B.where
C.whether
D.when
开始考试点击查看答案 - 4I’m not sure whether I can gain any profit from the investment, so I can’t make a(n) ________ promise to help you.
A.exact
B.defined
C.definite
D.sure
开始考试点击查看答案 - 5The ability to store knowledge makes computers different form every other machine ________ invented.
A.ever
B.thus
C.yet
D.as
开始考试点击查看答案 - 6The harm radiation has done to the Apollo crew members ________.
A.is insignificant
B.seems overestimated
C.is enormous
D.remains unknown
开始考试点击查看答案 - 7It can be inferred from the passage that ________.
A.the Apollo mission was very successful
B.protection from space radiation is no easy job
C.astronauts will have deformed children or grandchildren
D.radiation is not a threat to well-protected space explorers
开始考试点击查看答案 - 8The best title for this passage would be ________.
A.The Atmosphere and Our Environment
B.Research on Radiation
C.Effects of Space Radiation
D.Importance Protection Against Radiation
开始考试点击查看答案 - 9According to the passage the preference test was conducted in order to ________.
A.find out the role taste preference plays in a person’s drinking
B.reveal which cola is more to the liking of the drinkers
C.show that a person’s opinion about taste is mere guess-work
D.compare the ability of the participants in choosing their drinks
开始考试点击查看答案 - 10The statistics recorded in the preference tests show ________.
A.Coca-Cola and Pepsi are people’s two most favorite drinks
B.there is not much difference in taste between Coca-Cola and Pepsi
C.few people had trouble telling Coca-Cola from Pepsi
D.people’s tastes differ from one another
开始考试点击查看答案
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