研究生科技英语阅读答案(17)

(9) In life's earnest Battle they only prevail, who daily march onward and never say

fail. (10) We shall accumulate new experience and try new solutions as new problems arise. (11) Unregulated distribution networks provide more opportunities to sell contraband cigarettes. (12) The Man in the Moon has become the latest victim of contraction in the housing market。Astronomers reporting on Thursday in the US journal Science said they had found previous undetected landforms which indicate that Earth's satellite has been shrinking... albeit by only a tiny amount。Relative to the Moon's age, estimated at around 4.5 billion years, the contraction is recent, occurring less than a billion years ago, and is measured at about 100 meters (325 feet)。

IV. Cloze

1. form 2. by 3. system 4. with 5. under 6. critical 7. researchers 8. definitively 9. at 10. of 11. conditions 12. to 13. during 14. 14contributed 15. used