a 7-digit telephone number d1d2d3d4d5d6d7 called memorable if the prefix sequence d1d2d3 is exactly the same as either of the sequences d4d5d6 or d5d6d7 (possibly both). asume that each d1 can be any of the ten decimal digits 0, 1, 2, 3.... 9. what is the number of distinct memorable telephone number?

Analyze the passage below and find the sentence with an INCORRECT grammatical structure! (1) The violin and viola look most similar to one another. (2) They both belong to the string instrument family, and they are both played with a bow under the chin as well, and they are both very hard to play. (3) These created confusion for a great number of people, not to mention that they have similar names too, resulting people to address either one of them with the wrong calling. (4) There are, however, a rather quick easy way to differentiate the two even if one has never learnt music, and that is by the size of the instrument. (5) The violin is always smaller than the viola. The incorrect section is number …. A. 1 B. 2 C. 3 D. 4 E. 5

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As a researcher, I'm especially intrigued by fungus-growing ants, a group of 248 species that cultivate fungi as their main source of food. They include 79 species of leafcutter ants, which grow their fungal gardens with freshly cut leaves they carry into their enormous underground nests. I've excavated hundreds of leafcutter ant nests from Texas to Argentina as part of the scientific effort to understand how these ants coevolved with their fungal crops. Much like human farmers, each species of fungus-growing ant is very particular about the type, of crops they cultivate. Most varieties descend from a type of fungus that the ancestors of fungusgrowing ants began growing some 55 million to 65 million years ago. Ant farmers face many of the same challenges human farmers do, including the threat of pests. A parasite called Escovopsis can devastate ant gardens, causing the ants to starve. Likewise in human agriculture, pest outbreaks have contributed to disasters like the Irish Potato Famine, the 1970 corn blight, and the current threat to bananas. Since the 1950s, human agriculture has become industrialized and relies on monoculture, or growing large amounts of the same variety of crop in a single place. Yet monoculture makes crops more vulnerable to pests because it is easier to destroy an entire field of genetically identical plants than a more diverse one. Industrial agriculture has looked to chemical pesticides as a partial solution, turning agricultural pest management into a billion-dollar industry. The trouble with this approach is that pests can evolve new ways to get around pesticides faster than researchers can develop more effective chemicals. It's an arms race-and the pests have the upper hand. Ants also grow their crops in monoculture and at a similar scale-after all, a leafcutter ant nest can be home to 5 million ants, all of which feed on the fungi in their underground gardens. They, too, use a pesticide to control Escovopsis and other pests. Yet, their approach to pesticide use differs from humans' in one important way. Ant pesticides are produced by bacteria they allow to grow in their nests, and in some cases even on their bodies. Keeping bacteria as a living culture allows the microbes to adapt in real time to evolutionary changes in the pests. In the arms race between pests and farmers, farming ants have discovered·that live bacteria can serve as pharmaceutical factories that can keep up with ever-changing pests. Whereas recent developments in agricultural pest management have focused on genetically engineering crop plants to produce their own pesticides, the lesson from 55 million years of ant agriculture is to leverage living microorganisms to make useful products. Researchers are currently experimenting with applying live bacteria to crop plants to determine if they are effective at producing pesticides that can evolve in real time along with pests. Adapted from: https://theconversation.com/ants-with-their-wise-farming-practices-and-efficient-nauigation-techniques-could-lnspire-so/utions-for-somehuman-probl~ms-188939 14. If the research on living bacteria as pesticides is sucessful, famers will more likely .... A. plant various kinds of crops in an area B. switch the planted crops with live bacteria C. harvest more crops at the end of the season D. alter the pesticide from chemical ones to live bacteria E. breed fungus-growing ants on the same site they plant crop

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Passage 1 READING COMPREHENSION Horse owners who plan to breed one or more mares should have a working knowledge of heredity and know how to care for breeding animals and fools. The number of mares bred that conceive varies from about 40 to 85 percent, with the average running less than 50 percent. Some mares that do conceive fail to produce living foals. This means that, on average, two mares are kept a whole year to 5 produce one foal, and even then, some foals are disappointments from the standpoint of quality. By careful selection, breeders throughout history have developed various kinds of horses with a wide variety of characteristics to suit many different needs. The Great Horse of the Middle Ages, for example, was bred for size and strength to carry a heavily armored knight. The massive horses of such breeds are often called "cold blooded." The Arabs bred lithe desert horses that were small and swift. 10 These animals are often referred to as "hot blooded". Cross-breeding of hot blooded and cold-blooded horses for certain characteristics produced breeds ranging from riding horses to draft horses. The Thoroughbred is considered by many to be the highpoint of elegance and fine selective breeding. Many persons mistakenly apply the name Thoroughbred to any purebred horse. But a Thoroughbred is a distinct breed of running horses that traces its ancestry through the male line directly 15. back to three Eastern stallions as the Byerly Turk, the Darley Arabian, and the Godolphin Barb. For convenience the breeds of horses are often divided into three major groups: first is ponies, second is heavy, or draft horses; and the last is light horses. 1. What is the passage mainly about? A. Horse breading B. Horse farming C. Animal breeders D. Breeding knowledge 2. What percent is the average amount of mares bred conceive? A. about 45% B. around 85% C. more than 70% D. up to 50% 3. The word "conceive" in line 3 can be replaced by.. A. become sick. B. become pregnant. C. die. D. be born, 4. Which of the following was NOT owned by Great Horse of the Middle Ages? A. Large size B. Beauty C. Strength D. Swiftness 5. The words "These" in line 9 refers to A. Arabs B. Desert horses C. Breeds D. Animals 6. The word "highpoint" in 12 can be replaced by A. popularity. B. standard. C. massiveness. D. top. 2. According to the passage, which of the following horses is known as the finest purebred? A. Darley Arabian B. Thoroughbred C. Godolphin Barb D. Byerly Turk 8. It can be inferred from the passage why the cold-blooded and hot-blooded horses were cross-bred? A. Cross-breeding was a safer means of reproduction. B. Cross-bred horses were preferred by Arabs. C. By cross-breeding, horses with desirable mixed characteristics could be produced. D. Cross-breeding produced Thoroughbred horses 9. What is the origin of the Thoroughbred? A. A male lineage of Eastern stallion. B. A direct breed of running horses. C. A cross-breed of the Arabs. D. A purebred horse 10. Which of the following is NOT one of the major divisions of horse breeds? A. Draft horses. B. Ponies. C. Foals. D. Light horses.

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chapter 1: the beginning "Hmmm, so I've signed it. Now all I have to do is register directly from the school," Rita thought quickly . Rita or Rita Yunita is a girl who wants to go to Sakura Academy because she wants to get an award, become a student council member there, join champion, and get a scholarship so she can choose where she wants to go. "I hope I can pass the test so I can go to school at the currently popular Sakura Academy..." Rita spoke to herself. Chapter 2 : the great start . One day in a Japanese city there was a student who entered the Sakura Academy. There were many students who want to registered and then took a test to get permission to enter the academy or not... "Hello new students, welcome to Sakura Academy, a place where smart people study and graduate here," said the principal at Sakura Academy, Mrs. Lesia Kima. "With technology becoming more sophisticated day by day, Sakura Academy is developing it to become even more powerful" added Mrs. Kinada Tira, a teacher from class 1A . "Right, and let's start the registration event, ask all the students to go to the room next to the teachers' council, namely the registration room."Miss Lesia answered clearly. "Wow, that means this school is very modern!" thought Rita, "Hey, what's up there?" called a girl from behind."Huh?"Rita was confused because she heard someone calling her . "Hi, can we be friends? I don't have any friends here yet."answered the girl. "ooh of course, I'm Rita Yunita, what's your name? "Rita answered briefly ."My name is Yuta Aita, nice to meet you!" answered the girl whose name was apparently Yuta. "Yuta! Let's hurry to the student registration room. The other students have already left!" Rita answered quickly because she wanted to go to the registration room too. when they arrived at the registration room... "Haaaah!? The queue for registration is really long!! It took up to one night to queue before Yuta and I could register (sad)," answered Rita quickly but small. "Don't be sad, Rita, I've taken queue number 15 and number 16. I took two, one for you, that was before I met you, so don't worry." Yuta said calming Rita. "Wow, thanks Yuta ^^ "Rita answered happily. "Your welcome Rita, and now it's number 14 after me, then you Rita "Yuta answered calmly. [..NEXT NO.15..] "Well it's my turn! after that you Rita! "Yuta said that as he got up from his seat. "yes Yuta..{oh I'm so scared if I'm not accepted...} "Rita answered while thinking. "yeeeyy! I passed Rita! Now it's your turn! "Rita answered suddenly with a happy face."uh, yes yuta I'm coming..." Rita answered with a worried face.Rita got up from her seat and came to the registration area. "So... where is the registration paper? "Rita asked. "This is the paper, but first, can you provide proof that you are indeed enrolled at this Sakura Academy? "asked the person giving the registration form. "Here it is..I just registered yesterday. Is this true?"asked Rita who was waiting for the answer."Hmmm, wait a minute, I'll take a look first, okay?" answered the the person giving the registration form ."oohhh so you are the person who registered yesterday with the name Rita Yunita huh?"asked the person . "ah, yes, that's right..{hhhh luckily I'm there, so I'm a little calmer..}"Rita answered while thinking ."OK, here is the form, please write it with the correct information. "answered the person earlier. [Rita also wrote everything that was needed on the form correctly.] "Here's the form paper..I've finished answering it..{I hope I pass the next test so I can pass and can go to school here..}" Rita answered while shakingly handing over the form. [After waiting for a long time, Rita finally answered..] "Okay, you passed the next test like your friend Yuta. Isn't she your friend?"asked the person. "yes, that's right...oh yes, where will the next test be?"Rita asked with relief. "oh, it will be announced later so that everyone who passes can hear too.. "the person answered. "oh, thanks for the information..." Rita answered quietly as she went towards Yuta. "yuta! i passed too! !"Rita shouted happily. "wow, luckily you passed too! Hopefully we'll be in the same class too! "Yuta answered happily."You guys don't forget that your dorm rooms are the same so you have to remind each other. And also one room is only provided for 2 people so don't make the room messy otherwise you will be punished for sweeping the leaves on the school grounds, here is the dorm room card, the floor 5 No. 551 When you're in the room, don't be loud and don't be late for anything, you'll know what happens if you're late," answered the person giving the form at length. "Eeh...can I ask one more thing?" asked Rita nervously. "hhhh (sighs) quickly, what do you want to ask?" answered the form giver patiently . " If i want to register To become a student council or student council president, where do I go?" "ooh you will hear the announcement tomorrow morning at 07:15 remember don't be even a second late otherwise the field gate will immediately close. so now you can go to your dorm room with yuta now..." answered the person. "Aahh, sorry I asked a lot of questions and thank you for the information..." Rita answered slowly. [THEY GET UP THE LIFT AND GO TO THEIR Dormitory ROOM..] "Hmmm... room no. 549,, room no. 550,, room no. 551.. well here is our room Yuta!! "Rita said to Yuta who were busy carrying their suitcases and bags."Finally we arrived... Hey Rita, why did you tell me to carry our bags and suitcases? You only brought your cards and smartphone... I'm tired you know!" Yuta replied, almost angry because he was the one carrying their bags and suitcases. "Hehehe, don't be angry, Yuta, because if I told you to look for our room and I was the one carrying our bags and suitcases, you wouldn't find our room because you don't seem to be a careful person :v" Rita answered casually while explaining at length. "hhhh (takes a deep breath) OK, that's up to you, Rita, I'm lazy..." Yuta answered resignedly........ Pertanyaannya adalah.. 1.siapa nama karakter utamanya?....... 2.siapa teman pertamanya?.... 3.apa nama sekolah barunya?.... MAKASIH SUDAH MENJAWAB~~~~♥︎ BTW INI CERITA ASLI BUATANKU SENDIRI! BY ZAHIRAH JANGAN TIRU KLO ENGGAK BERDOSA

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There once was a little boy who had a bad temper. He could get angry easily. His father gave him a bag of nails and told him that every time he lost his temper, he must hammer a nail into the back of the fence. The first day, the boy had hammered 37 nails into the fence. For the next few weeks, as he could control his anger, the number of nails hammered was getting smaller. He discovered it was easier to hold his temper than to hammer those nails into the fence. Finally, the day came when the boy didn't get angry at all. He told his father about it and the father suggested that the boy now pull out one nail each day he was able to hold his temper. The days passed and the boy was finally able to tell his father that all the nails were gone. The father took his son and led him to the fence. He said, "You have done well, my son! but look at the holes in the fence. The fence will never be the same. When you say things in anger, they leave a scar just like this one. It won't matter how many times you say I'm sorry, the wound is still there. The main idea of paragraph 3 is .... A. saying things in anger can hurt someone deeply B. the boy has done his punishment well C. the boy's father is happy to see his bad-tempered son D. the wound becomes a scar in somebody's heart

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