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258. It is the prevention of disease _____ its successful treatment that has led to the rapid increase of the world’s population.

   A. rather than        B. including          C. but also           D. less than

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257. Three _____ four people    believe that having healthy teeth is very important.

   A. by              B. from             C. out of            D. of

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256. We held a football match _____ Class 1 and Class 5 last semester.

   A. with             B. among               C. between          D. by

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255. I’m sure ghosts do not exist. _____ I have never seen one.

   A. First of all         B. Now and then      C. Day and night      D. At least

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254. The idea of fighting a noise _____ making more noises sounds strange, but that’s _____ what we are doing now.

   A. with; just         B. through; very       C. by; exactly        D. for; indeed

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253. --- Your _____, please!

   --- Why don’t you ring and ask Mr. King inside the hall? It was he who asked me to come to the party.

   A. food             B. money               C. invitation         D. suggestion

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252. Our parents will show us a film projector for our party. Let’s sit _____ the table and have a look.

   A. on              B. near             C. round            D. about

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251. People try to avoid public transportation delays by using their own cars, and this _____ creates more problems.

   A. after all           B. once again         C. in case               D. in turn

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250. She’s already got her air ticket and will go to Canada _____.

   A. little by little       B. bit by bit          C. by and by         D. step by step

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249. Don’t all stand up at one time! _____, please.

   A. Each at one time        B. One by one time        C. One at a time       D. One for each time

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