某男，13岁，恒牙，磨牙远中关系，双侧第二磨牙正锁，上颌略前突，下颌基本正常，上切牙至SN为105°，覆覆盖Ⅱ度，上下牙弓Ⅱ度拥挤，用方丝弓矫治器拔牙矫治

第二磨牙锁矫治的时机为

A:在矫治初期解除锁 B:在远中移动尖牙时 C:在关闭拔牙间隙时 D:在牙位精细调整时 E:16岁以后矫正

某男，13岁，恒牙，磨牙远中关系，双侧第二磨牙正锁，上颌略前突，下颌基本正常，上切牙至SN为105°，覆覆盖Ⅱ度，上下牙弓Ⅱ度拥挤，用方丝弓矫治器拔牙矫治

在矫治锁时临床上可以使用

A:单侧前磨牙垫 B:双侧前磨牙垫 C:单侧至第一磨牙的后牙垫 D:双侧至第一磨牙的后牙垫 E:前牙连冠斜导

某男，9岁，前牙反求治。侧面观凹面型，上颌后缩，下颌基本正常。口内检查：前牙反，双侧磨牙近中尖对尖，下颌不可退至对刃。反覆

该患者错畸形有关的可能性最大的病因是

A:乳牙反未治，上颌骨发育受限 B:咬下唇习惯 C:吐舌习惯 D:后牙萌出过度 E:垂体功能亢进

Passage Five Whatever you do, don’t challenge a chimpanzee named Ayumu to a number memory game. In 2007, Ayumu became famous for his lightning speed at a game that goes like this: A player views a computer screen where the number 1 through 9 appear briefly at once and then tun to white squares. The player then taps the squares where the numbers had been, in order from 1 to 9. People can do it .But no human competitor has ever completed the game faster or more accurately than Ayumu the chimp. For almost five years Ayumu remains undefeated. Psychologist Nicholas Humphrey of Darwin College at Cambridge University in England now thinks he knows the secret behind the chimp’s ability. Humphrey suspects Ayumu’s brain may have a condition that allows the chimp to see numbers as colors. This would mean that Ayumu may see a color glow after the number disappears. Then, instead of remembering the numbers, he remembers a sequence of colors, each associated with a number. The condition that Humphrey believes Ayumu may have is called synesthesia. Humans with synesthesia may associate number and letters with colors. For example, a person may see the number“5”as the color blue. Until now, scientists and assumed only humans could have synesthesia. Humphrey found the inspiration for his idea at a 2011 scientific conference. There, he heard a presentation about Ayumu’s memory abilities and another talk about synesthesia. He then put the two ideas together. Not everyone is convinced that Humphrey is correct. Primatologist Tetsuro Matsuzawa of the Primate Research Institute at Kyoto University in japan has spent decades studying the amazing memories of chimpanzees, including Ayumu. He maintains that chimps simply have faster memory recall than people. Which of the following is true of Nicholas Humphrey

A:He thinks Ayumu has an amazing memory. B:He believes that Ayumu sees the colors of numbers. C:He was inspired by Primatologist Tetsuro Matsuzawa. D:He delivered a speech on synesthesia at the 2011 conference.

When it comes to singling out those who have made a difference in all our lives, you cannot overlook Henry Ford. A historian a century from now might well conclude that it was Ford who most influenced all manufacturing, everywhere, even to this day, by introducing a new way to make cars-one, strange to say, that originated in slaughterhouses (屠宰场).
Back in the early 1900’s, slaughterhouses used what could have been called a "disassembly line". Ford reversed this process to see if it would speed up production of a part of an automobile engine called a magneto. Rather than have each worker complelely assemble a magneto, one of its elements was placed on a conveyer, and each worker, as it passed, added another component to it, the same one each time. Professor David Hounshell of the University of Delaware, an expert on industrial development, tells what happened:
"The previous day, workers carrying out the entire process had averaged one assembly every 20 minutes. But on that day, on the line, the assembly team averaged one every 13 minutes and 10 seconds per person. "
Within a year, the time had been reduced to five minutes. In 1913, Ford went all the way. Hooked together by ropes, partially assembled vehicles were towed (拖，拉) past workers who completed them one piece at a time. It wasn’t long before Ford was turning out several hundred thousand cars a year, a remarkable achievement then. And so efficient and economical was this new system that he cut the price of his cars in half, to $260, putting them within reach of all those who, up until that time, could not afford them. Soon, auto makers the world over copied him. In fact, he encouraged them to do so by writing a book about all of his innovations, entitled Today and Tomorrow. The Age of the Automobile has arrived. Today, aided by robots and other forms of automation (自动化), everything from toasters to perfumes is made on assembly lines.

A:He introduced a new way of production. B:He influenced all manufacturing. C:He inspired other auto makers. D:He changed a historian’s mind.

Ford’s Assembly Line
When it comes to singling out those who have made a difference in all our lives, you cannot overlook Henry Ford. A historian a century from now might well conclude that it was Ford who most influenced all manufacturing, everywhere, even to this day, by introducing a new way to make cars—one, strange to say, that originated in slaughterhouses (屠宰场).
Back in the early 1900%, slaughterhouses used what could have been called a "disassembly line". Ford reversed this process to see if it would speed up production of a part of an automobile engine called a magneto. Rather than have each worker completely assemble a magneto, one of its elements was placed on a conveyer, and each worker, as it passed, added another component to it, the same one each time. Professor David Hounshell of the University of Delaware, an expert on industrial development, tells what happened:
"The previous day, workers carrying out the entire process had averaged one assembly every 20 minutes. But on that day, on the line, the assembly team averaged one every 13 minutes and 10 seconds per person."
Within a year, the time had been reduced to five minutes. In 1913, Ford went all the way. Hooked together by ropes, partially assembled vehicles were towed (拖，拉) past workers who completed them’ one piece at a time. It wasn’t long before Ford was turning out several hundred thousand cars a year, a remarkable achievement then. And so efficient and economical was this new system that he cut the price of his cars in half, to $260, putting them within reach of all those who, up until that time, could not afford them. Soon, auto makers over the world copied him. In fact, he encouraged them to do so by writing a book about all of his innovations, entitled Today and Tomorrow. The Age of the Automobile has arrived. Today, aided by robots and other forms of automation (自动化), everything from toasters to perfumes is made on assembly lines.

A:He introduced a new way of production. B:He influenced all manufacturing. C:He inspired other auto makers. D:He changed the minds of historians.

{{B}}第二篇{{/B}}

A:He introduced a new way of production. B:He influenced all manufacturing. C:He inspired other auto makers. D:He changed the minds of historians.

第二篇 Ford’s Assembly Line When it comes to singling out those who have made a difference in all our lives, you cannot overlook Henry Ford. A historian a century from now might well conclude that it was Ford who most influenced all manufacturing, everywhere, even to this day, by introducing a new way to make cars-one, strange to say, that originated in slaughterhouses（屠宰场）. Back in the early 1900’s, slaughterhouses used what could have been called a “disassembly line”. Ford reversed this process to see if it would speed up production of a part of an automobile engine called a magneto. Rather than have each worker completely assemble a magneto, one of its elements was placed on a conveyer, and each worker, as it passed, added another component to it, the same one each time. Professor David Hounshell of the University of Delaware, an expert on industrial development, tells what happened. “The previous day, workers carrying out the entire process had averaged one assembly every 20 minutes. But on that day, on the line, the assemble team averaged one every 13 minutes and 10 seconds per person.” Within a year, the time had been reduced to five minutes. In 1913, Ford went all the way. Hooked together by ropes, partially assembled vehicles were towed(拖，拉) past workers who completed them one piece at a time. It hasn’t long before Ford was turning out several hundred thousand cars a year, a remarkable achievement then. And so efficient and economical was this new system that he cut the price of his cars in half, to $260, putting them within reach of all those who, up until that time, could not afford them. Soon, auto makers the world over copied him. In fact, he encouraged them to do so by writing a book about all of his innovations, entitled Today and Tomorrow. The Age of the Automobile has arrived. Today, aided by robots and other forms of automation(自动化), everything from toasters to perfumes is made on assembly lines. Which of the following statements about Henry Ford is NOT true?

A:He introduced a new way of production. B:He influenced all manufacturing. C:He inspired other auto makers. D:He changed a historian’s mind.

A Wishing to encourage her young son’s progress on the piano, a mother took her boy to a Paderewski concert. After they were seated, the mother spotted a friend in the audience and walked down the aisle to greet her. Seizing the opportunity to explore the wonders of the concert hall, the little boy rose and eventually explored his way through a door marked "NO ADMITTANCE. " When the house lights dimmed and the concert was about to begin, the mother returned to her seat and discovered that the child was missing. Suddenly, the curtains parted and spotlights focused on the impressive Steinway on stage. In horror, the mother saw her little boy sitting at the keyboard, innocently picking out Twinkle, Twinkle Little Star. At that moment, the great piano master made his entrance, quickly moved to the piano, and whispered in the boy’s ear," Don’t quit. Keep playing. "Then leaning over, Paderewski reached down with his left hand and began filling in a bass part. Soon his right arm reached around to the other side of the child and he added a running obbligato. Together, the old master and the young beginner transformed a frightening situation into a wonderfully creative experience. The audience was amazed and cheered up. That’s the way it is in life. What we can accomplish on our own is hardly noteworthy. We try our best, but the results aren’t exactly graceful flowing music. But when we trust in the hands of a Greater Power, our life’s work truly can be beautiful. Next time you set out to accomplish great feats, listen carefully. You can hear the voice of the Master, whispering in your ear," Don’t quit, keep playing. "Mother took her son to the concert so that the boy could ______.

A:be encouraged to be a brave man B:become a piano master C:be inspired for what he’d achieved D:be a great pianist