In the first half of 2004, China imported about 18.04 million tons of steel, accounting for 39 / 40 of the steel imports in the first half of 2003
1804 / (39 * 40) is about 18.5 million tons
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- 1. In a 12 cm long, 6 cm wide rectangular piece of paper, cut a 1 cm radius disc, you can cut up to () discs
- 2. 1. Three out of eighty-six / one out of eighty-seven 2. An engineering team built a highway. 38m in the first day, 42m in the second day. The second day more than the first day was 1 / 28 of the total length of the road. How many meters in the total length of the road? How many parts of the road were built in the two days 3. Two jackets with the original price of 1200 yuan were sold in the shopping mall. It is known that one of them earned 1 / 5 and the other lost 1 / 5. What are the current prices of these two jackets? (there must be a formula, and you'd better answer it) 4. There are two boxes of fruit. 3 / 5 of the weight of box a is equal to 3 / 4 of box B. what is the weight of Box B? (write the answer directly) 5. To make a part, it takes 5 minutes for a, 7 minutes for B, and 1 / 4 of every minute for C. among the three people, () is the most effective 6. Read a science and technology book, read 1 / 6 of it every day, and finish 1 / 2 of the book in () days 7. When the value of x equals () or (), X2 = 6x 8.1/30 + 1 / 42 + 1 / 56 + 1 / 72 + 1 / 90 Those who answer all the above questions will consider adding! /On behalf of the division sign, answer to mark the question number!
- 3. How many grams of water should be evaporated from 20% salt water 80 Kerry to make 50% salt water
- 4. There are three classes in grade six. Class one accounts for 25% of the total number of the three classes. The ratio of class two to class three is 8:7, and class one is 24 less than class two Q:
- 5. Among the three classes in Grade 6, class 1 accounts for 25% of the total number of the three classes, and the ratio of class 2 to class 3 is 7; class 8 is 24 heads less than Class 3, Among the three classes in Grade 6, the number of class 1 accounts for 25% of the total number of the three classes, and the ratio of class 2 to class 3 is 7; 8 the number of class 1 is 24 less than that of class 3. What is the number of class 6
- 6. There are three classes in grade six. Class one accounts for 25% of the total number of the three classes. The ratio of class two to class three is 7:8, and class one is 24 less than class three There are three classes in grade six. Class one accounts for 25% of the total number of the three classes. The ratio of class two to class three is 7:8, and class one is 24 less than class three. How many students are there in grade six? It takes six hours for the express train to go from station a to station B, and 10 hours for the local train to go from station B to station a. the two trains are facing each other at the same time. When they meet, the express train runs 225km, and how many kilometers are there between the two stations?
- 7. 84 17 、 On the map with a scale of 0.3060.90 km, the distance between the two places is 12 cm. A and B vehicles start from both places at the same time and run in opposite directions. After 3 hours, they meet. It is known that the speed ratio of a and B vehicles is 7:5, so the speed of the two vehicles can be calculated
- 8. 84 23 The following is a statistical table of six grades in a primary school. Please find out the number of students in Grade 1 and grade 2 according to the data in the table 8 4 88 92 91 89 90 eight
- 9. 84 21 ——+22 There is a 100 meter long iron wire. The first time we used 28 meters, which is 5.6 meters less than 4 / 7 of the second time. How many meters are left If a store sells a certain commodity at a 10% discount on the price, it can still make a profit of 20%. If the purchase price of the commodity is 19800 yuan, how much should the price be
- 10. The answer to the short passage of the vibrant sunflower One morning, the sunflower opened. Under a layer of round green leaves, three small flowers flashed out. One was red, one was yellow, and one was lavender. The blooming flowers were as gorgeous as rosy clouds, and as eye-catching as gems. In our quiet courtyard, they aroused a burst of surprise and admiration The three flowers are signals. The sound of the trumpet can't be stopped. The big flower, the small flower, the single petal, the double petal, the red, the yellow, the purple, the blue, the pink open together. A piece of green flannel turns into colorful brocade in a twinkling of an eye. Even those who don't love flowers can't stand the attraction of this beauty. When they are free, they gather around the flower bed to enjoy it From early summer to late autumn, the flowers are enduring. A piece of brocade has always kept bright and eye-catching colors. At first, we thought that the reason for this enduring is that sunflowers love the sun and can stand the test of the hot sun. Yes, it is, Only the sunflower has no reservation for the scorching sun. The hotter the sun is, the more gorgeous, enthusiastic and vigorous it is But after seeing more, I noticed that as a single sunflower, its life is very short. It blooms in the morning and withers in the evening, only one day. Because the flowering time is so short, this opportunity is very precious. Every day, there are a number of mature buds waiting to open. Before sunrise, it is wrapped tightly, and can't see the meaning of opening, but when you see the sun, Immediately open. Petals like waking up from a deep sleep. Slowly stretch out, open big, open round After that, it will enjoy the sunshine greedily and open to its heart's content. When the sunset sets, the petals will shrink again, and the flower will no longer open. The next day, it will be another batch of mature buds to welcome the sunrise How active and vivid the alternation between the new and the old is! Perhaps it is because of this that when the sunflowers bloom, they are so energetic and spare no effort. Although the life of the individual sunflowers is so short, they are always so brilliant and full of vitality on the whole The sunflowers are not depressed, and do not mean laziness. After they have finished their blooming, they will vacate the gap, give the best direction to the sun, give them new buds, and flash themselves together, gather the essence, and bring their offspring to life. They will continue to give life to the future. Until autumn frost kill, it has quietly scattered the seeds of silver seeds into the earth. In the second year, too many to count will be sprouting. The admirers of sunflower seem to have found a world here, a scientific, fair and friendly world. Like philosophers, they shout and sigh: the cause of sunflower is so prosperous! The Enlightenment of sunflower is undoubtedly beneficial 1. What are the characteristics of sunflower? Please summarize in simple language 2. "Although the life of individual sunflowers is so short, on the whole, they are always so brilliant and lively." why? 3. Where is the loveliness of the sunflower? 4. "The sunflower is in bloom. Under a layer of round green leaves, three little flowers flash out." "Oneself is shining aside, gathering the essence, giving birth to future generations, and extending life to the future." What's the difference between these two sentences? 5. The article uses a variety of rhetorical devices to describe sunflowers. Please give some examples to show their expressive functions 6. What is the "beneficial enlightenment" that sunflower has given you?
- 11. A project, Party A and Party B cooperate to complete in 8 days. Party A did it alone for 6 days, Party B did it alone for 5 days, a total of 27 / 40 of this project. If this project is done by Party A alone, how many days will it take to complete?
- 12. As shown in the picture, the gold medal used in Beijing Olympic Games has a diameter of 70mm, the diameter of the center circle is 30mm, and the width of the gold medal's border is 5mm. Can you calculate the area of the ring-shaped jade wall inlaid on the back of the medal?
- 13. A rope, the first minus 38, the second minus the remaining 15, there are still 24 meters, how long is this rope?
- 14. A rope, the first cut 38, the second cut 14, there are 24m left, how long is this rope?
- 15. A rope, the first minus 38, the second minus the remaining 15, there are still 24 meters, how long is this rope?
- 16. For a rope, cut 25% in the first time, and cut 5 meters less in the second time than in the first time. This is 25 meters left. How many meters are there in the whole court?
- 17. For a rope, 20% of the total length is used for the first time, and half of the total length is used for the second time, with 4.5m left. How long is the rope?
- 18. Fill in the question mark according to the rule
- 19. This is the question 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9. + 100 =?
- 20. If 1 = 5, 2 = 6, 3 = 7, 4 = 8, then 5 =? Answer Such as the title