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manhlion1988
2 năm trước
tìm giới hạn lim=n^4 / ( n +1 ) (2 +n) (n^2 + 1)
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+ 9 + 10 SYNONYM: UNIT 8 1. Parents try to send their children to school or college so that their children can find a way of bettering their lives. A. improving B. moving C. changing D. achieving 2. There were plenty of frogs in the fields around the village. A. much B. many C. lots D. a lot 3. Last year, farmers in Mekong delta had bumper crops. A. bad B. normal C. well D. good 4. I'll speak to her as soon as she comes out of the meeting. A. goes to B. appears C. leaves D. attends UNIT 9 1. Sperm whale population is at risk due to hunting. A. in extinction B. in danger C. on the decrease D. in fewness 2. Some marine animals are dangerous to humans. A. living in the mountain B. living in the ocean C. living in the forest D. living in the house 3. The floor was covered in tiny pieces of paper. A. unimportant B. many C. very large D. extremely small 4. Human infants have a gestation period of nine months. ` A. the time during which a human baby develops inside its mother B. the time when a stomach digests food C. the time of eating food D. the time of growing up 5. Whales feed on krill. A. tiny shellfish B. small fish C. sea plants D. small animals 6. If modern technology did not exist, we would never have such precious information. A. valuable B. precise C. confidentialD. detailed UNIT 10 1. The new law to conserve wildlife in the area will come into force next month. A. pollute B. protect C. destroy D. eliminate 2. There is a wide variety of opinions on sea food cultivation. A. same B. supply C. diversity D. interaction 3. Sperm whales and sharks are carnivores. A. animals that live in the sea C. animals that only eat plants B. fish that aren't born from eggs D. animals that eat meat 4. Man and animals need a constant supply of water to live. A. rare; B. short; C. valuable; D. regular 5. Try to eliminate fatty foods from your diet A. limit B. get rid of C. move D. add

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