题目内容：
For questions 2～5, markY (for YES) if the statement agrees with the information given in the passage;
N (for NO) if the statement contradicts the information given in the passage;
NG (for NOT GIVEN) if the information is not given in the passage,
For questions 6～11, complete the sentences with the information given in the passage.
Even veteran test pilots who travel in space suffer from feelings of motion-sickness initially even if they have never been airsick.
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答案解析：