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anhminhanh2000
2 năm trước
1 gen có A/G = 2/3 và số Nu trên 1 mạch của gen là 1200 .Tính số lượng và tỷ lệ % từng loại Nu trong gen
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EX4. Thêm phần đuôi cho các câu hỏi sau 71. He'll never know, ..............? 72. I think, he's from India, ..............? 73. Lovely day today, ..............? 74. She is collecting stickers, ..............? 75. We often watch TV in the afternoon, ..............? 76. You have cleaned your bike, ..............? 77. John and Max don't like Maths, ..............? 78. Peter played handball yesterday, ..............? 79. They are going home from school, ..............? 80. Mary didn't do her homework last Monday, ..............? 81. He could have bought a new car, ..............? 82. Kevin will come tonight, ..............? 83. I'm clever, ..............? 84. Murat gets up late, ..............? 85. You didn't go to school yesterday, ................? 86. I am not a nurse, ..............? 87. She doesn't cook well, ..............? 88. You can speak English, ..............? 89. I am your best friend, ................? 90. The sun is shining, ................? giúp mình với các b iu ơi =((

Make sure that you ………….. the hamburgers long enough so that they're not still red on the inside. A. burn B. stir C. fry D. boil27. Don't ………….. the rice too much while it is cooking or it will get all stuck together. A. heat B. slice C. flavor D. stir 28. Do you want caramel or chocolate ……………. on your ice cream? A. sauce B. cover C. melt D. serve 29. I think a lot of the raspberries are ……………. now, so we can start picking them this afternoon. A. roasted B. ripe C. done D. flavored 30. Our beans are ………… to perfection, resulting in a smooth, full-bodied coffee. A. boiled B. spin C. flavored D. roasted 31. In my country, we don't usually eat ………….. vegetables; we steam or fry everything. A. raw B. uncooked C. bland D. undone 32. I was cutting the watermelon when I ………….. through my thumb, and had to go to the hospital. A. burn B. stir C. slice D. spin 33. Professional wine tasters never drink the wine they taste. They ………… . it, hold it in their mouth for a few seconds, and then spit it out. A. chew B. swallow C. taste D. sip 34. Aspirin has a very ………… taste. A. bitter B. spicy C. sweet D. sour 35. Pass me the hot sauce. This meal is too …………… A. bland B. spicy D. nutritious D. delicious 36. What are we going to have for ………..? A. dessert B. desert C. dish D. meal 37. In a restaurant, you can order your steak "rare", "medium", or "well …………. A. cooked B. burned C. flavored D. done 38. I once got food …………. from eating raw fish. A. poison B. poisonous C. poisoning D. poisoned 39. To cut up food into small pieces is to ………… A. eat out B. chop up C. warm up D. whip up 40. She remained as cool as ………… and refuse to reveal anything. A. an ice B. water C. ice D. a cucumber

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