问题
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The Giant’s Causeway was located in __________.A.WalesB.EnglandC.ScotlandD.Northern Irel
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The ozone layer plays as great a role in the stability of spaceship Earth as ______ the wa
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The astronauts on board the spaceship______ in shape by running around the ceiling of a hu
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In the passage how many cancers are mentioned in
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Which of the following is NOT mentioned in the pa
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Which of the following is NOT mentioned in the pa