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| A.細(xì)胞壁的化學(xué)成分主要是纖維素和果膠 |
| B.生物體內(nèi)的多糖都是能源物質(zhì),且都儲(chǔ)存于細(xì)胞內(nèi) |
| C.需氧型生物的細(xì)胞都是以線粒體作為產(chǎn)能的“動(dòng)力工廠” |
| D.細(xì)菌、真菌都是以核糖體作為蛋白質(zhì)的“裝配機(jī)器” |
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| (1)WAITE WANTED Are you hard—working? Do you like to meet people? If your answer is “Yes”, then we have a job for you as a waiter. Call AL Hotel at 8556779. | (2)REPORTER WANTED Do you like to talk with people? Do you like to write stories? If you want to work for our magazine as a reporter, please call Karen at 8558366. |
| (3)HELP WANTED Do you like babies? Can you look after one baby for two days? If you are sure to take good care of it, call us at 8766588. $ 80 or more. Today! Hurry1 | (4)CLEANER WANTED Can you make a large house clean and tidy? If you hope to get the job paid at $ 20 once, call us this evening 18:00—20:00. Tel: 8633800. |
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