¡¡¡¡£¨A£© The development of a new jumbo rocket that is expected to carry the United States into its next phase of space exploration will be able to deliver a heavier load of instruments into orbit than the space shuttle and at a lower cost.
¡¡¡¡£¨B£© The development of a new jumbo rocket is expected to carry the United States into its next phase of space exploration and be able to deliver a heavier load of instruments into orbit at a lower cost than the space shuttle.
¡¡¡¡£¨C£© The new development of a jumbo rocket£¬ which is expected to carry the United States into its next phase of space exploration£¬ will be able to deliver a heavier load of instruments into orbit at a lower cost than the space shuttle.
¡¡¡¡£¨D£© A newly developed jumbo rocket£¬ which is expected to carry the United States into its next phase of space exploration£¬ will be able to deliver a heavier load of instruments into orbit than the space shuttle can£¬ and at a lower cost.
¡¡¡¡£¨E£© A newly developed jumbo rocket£¬ which is expected to carry the United States into its next phase of space exploration£¬ will be able to deliver a heavier load of instruments into orbit than the space shuttle and to cost less.
¡¡¡¡16. Once they had seen the report from the medical examiner£¬ the investigators did not doubt whether the body recovered from the river was the man who had attempted to escape from the state prison.
¡¡¡¡£¨A£© did not doubt whether the body recovered from the river was
¡¡¡¡£¨B£© have no doubt whether the body recovered from the river was
¡¡¡¡£¨C£© had not doubted that the body recovered from the river was
¡¡¡¡£¨D£© have no doubt whether the body recovered from the river was that of
¡¡¡¡£¨E£© had no doubt that the body recovered from the river was that of
¡¡¡¡17. Contestants in many sports prepare for competition by eating pasta as part of a ¡°carbohydrate-loading ¡± regimen that is supposed to provide quick energy.
¡¡¡¡£¨A£© prepare for competition by eating pasta as
¡¡¡¡£¨B£© prepare for competition and eat pasta£¬ which is
¡¡¡¡£¨C£© prepare for competition by eating pasta because this is
¡¡¡¡£¨D£© eat pasta to prepare for competing£¬ which is
¡¡¡¡£¨E£© eat pasta to prepare for competing as
¡¡¡¡18. His studies of ice-polished rocks in his Alpine home-land£¬ far outside the range of present-day glaciers£¬ led Louis Agassiz in 1837 to propose the concept of an age in which great ice sheets had existed in now currently temperate areas.
¡¡¡¡£¨A£© in which great ice sheets had existed in now currently temperate areas
¡¡¡¡£¨B£© in which great ice sheets existed in what are now temperate areas
¡¡¡¡£¨C£© when great ice sheets existed where there were areas now temperate
¡¡¡¡£¨D£© when great ice sheets had existed in current temperate areas
¡¡¡¡£¨E£© when great ice sheets existed in areas now that are temperate
¡¡¡¡19. More and more in recent years£¬ cities are stressing the arts as a means to greater economic development and investing millions of dollars in cultural activities£¬ despite strained municipal budgets and fading federal support.
¡¡¡¡£¨A£© to greater economic development and investing
¡¡¡¡£¨B£© to greater development economically and investing
¡¡¡¡£¨C£© of greater economic development and invest
¡¡¡¡£¨D£© of greater development economically and invest
¡¡¡¡£¨E£© for greater economic development and the investment of
¡¡¡¡20. Since 1986 enrollments of African Americans£¬ American Indians£¬ and Hispanic Americans in full-time engineering programs in the United States has steadily increased£¬ while the number of other students who enter the field has fallen.
¡¡¡¡£¨A£© has steadily increased£¬ while the number of other students who enter the field has fallen
¡¡¡¡£¨B£© has steadily increased£¬ while other students entering the field have declined in number
¡¡¡¡£¨C£© increased steadily£¬ while there was a decline in the number of other students entering the field
¡¡¡¡£¨D£© have steadily increased£¬ while the number of other students entering the field has fallen
¡¡¡¡£¨E£© have steadily increased£¬ while that of other students who enter the field fell
¡¡¡¡KEYS
¡¡¡¡1. D 2. E 3. B 4. A 5. B
¡¡¡¡6. C 7. D 8. A 9. C 10. E
¡¡¡¡11. D 12. B 13. C 14. E 15. D
¡¡¡¡16. E 17. A 18. B 19. A 20. D
