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The official identification of a vessel is found in the （）.
A . Certificate of Inspection
B . Classification Certificate
C . Loadline Certificate
D . Certificate of Documentatio
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A diesel engine piston ring face is in direct contact with the （）.
A . top of the ring groove
B . cylinder liner oil film
C . bottom of the ring groove
D . back of the ring groove
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In a diesel engine, when refitting piston rings you should （） Ⅰ.check the ring gap at the smallest diameter of the cylinder Ⅱ. Remove carbon from the ring groove
A . Ⅰ only
B . Ⅱ only
C . both Ⅰ and Ⅱ
D . neither Ⅰ nor Ⅱ
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In the sentence “In some designs the cylinder oil is timed so that the oil injects only on the piston ring belt, the "piston ring belt" means （）.
A . piston crown
B . piston ring groove
C . piston skirt
D . piston ring area
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Which of the following characteristic of lube oil helps to reduce the amount of deposits in the piston ring belt during the combustion process in a diesel engine?（）
A . Low viscosity index
B . Low carbon forming tendencies
C . High film strength
D . High non-corrosive qualitie
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Who founded the first permanent settlements at Quebec and Montreal on the St.Lawrence River?（）
A . John Cabot.
B . Jacques Cartier.
C . Samuel de Champlain
D . Henry Hudso
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A condition contributing to diesel engine piston rings sticking in the ring grooves, is insufficient ring clearance at the ring（） Ⅰ.gap Ⅱ.side
A . Ⅰonly
B . Ⅱ only
C . both Ⅰ and Ⅱ
D . neither Ⅰ nor Ⅱ
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The Coast Radio Stations are found in（）.
A . Admiralty List of Lights and Fog Signals
B . Admiralty Maritime Communications
C . Admiralty List of Radio Signals
D . Admiralty Digital List of Light
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The Bank of England was founded in（）
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If the compression rings on a diesel engine piston become stuck in the ring groove, the cause may be due to（）
A . excessive ring action
B . excessive ring temperature
C . improper ring rotation
D . excessive ring face wear
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The great source of modification of the air stream is found in the（）cavity.
A . nasal
B . oral
C . lung
D . glotti
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Why do the customers who go to the competition consequently ring Sally’s firm?
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He had lost all that dreamy vagueness and indecision. Now he had the air of a man who has found his place in life .
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The Ring is wanted by everyone, because it has the evil power and can inspire the greed in heart.
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The child ( ) we thought was lost was found in the text block.
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The girl who found the ring received a generous_____of five pounds.
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9 Dust found the little girl crying in the street.
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The Polynesians, who colonized Hawaii sometime between AD. 500 and AD.1000, found uses for many indigenous plants.
A．tropical
B．simple
C．native
D．strange
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The mother regretted___ her little daughter, for she found that it was her son who broke the vase.A、to blame
B、to have blamed
C、blaming
D、having blamed
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Early in the 16th century men were trying to reach Asia by traveling west from Europe. In order to find Asia they had to find a way past South America. The man who eventually found the way from the Atlantic Ocean to the Pacific was Ferdinand Magellan.
Magellan sailed from Seville in August 1519 with five ships and about 280 men. Fourteen months later, after spending the severe winter on the coast of Patagonia, he discovered the channel which is now called Magellan's Straits. In November 1520, after many months of dangers from rocks and storms, the three remaining ships entered the ocean on the other side of South America.
They then continued, hoping to reach Asia. Before they arrived at these islands, later known as the Philippines, Magellan was killed in battle. The remaining officers then had to get back to Spain. They decided to sail around Africa. After many difficulties, one ship with eighteen men sailed into Seville three years after leaving. They were all that remained of Magellan's expedition. However, their achievement was great. They were the first men to sail round the world.
The purpose of Magellan's expedition was ______.
A．to become famous at that time
B．to find navigation line from the Atlantic to the Pacific
C．to make a voyage to Asia
D．to carry men to the Seville
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Bernard Jackson is a free man today, but he has many bitter memories. Jackson spent five years in prison after a jury wrongly convicted him of raping two women. At Jackson's trial, although two witnesses testified that Jackson was with them in another location at the times of the crimes, he was convicted anyway. Why？ The jury believed the testimony of the two victims, who positively identified Jackson as the man who has attacked them. The court eventually freed Jackson after the police found the man who had really committed the crimes. Jackson was similar in appearance to the guilty man. The two women has made a mistake in identity. As a result, Jackson has lost five years of his life.
The two women in this case were eyewitnesses. They clearly saw the man who attacked them, yet they mistakenly identified an innocent person. Similar incidents have occurred before. Eyewitnesses to other crimes have identified the wrong person in a police lineup or in photographs.
Many factors influence the accuracy of eyewitness testimony. For instance, witnesses sometimes see photographs of several suspects before they try to identify the person they saw in a lineup of people. They can become confused by seeing many photographs or similar faces. The number of people in the lineup, and whether it is a live lineup or a photograph, may also affect a witnesses decision. People sometimes have difficulty in identifying people of other races. The questions the police ask witnesses also have an effect on them.
Are some witnesses more reliable than others？ Many people believe that police officers are more reliable than ordinary people. Psychologists decided to test this idea, and they discovered that it is not true. Two psychologists showed a film of crimes to both police officers and civilians. The psychologists found no difference between the police and the civilians in correctly remembering the details of the crimes.
Despite all the possibilities for inaccuracy, courts cannot exclude eyewitness testimony from a trial. American courts depend almost completely on eyewitness testimony to resolve court cases. Sometimes it is the only evidence to a crime, such as rape. Furthermore, eyewitness testimony is often correct. Although people do sometimes make mistakes, many times they really do identify individuals correctly.
American courts depend on the ability of the 12 jurors, and not the judges, to determine the accuracy of the witnesses testimony. It is their responsibility to decide if a certain witness could actually see, hear, and remember what occurred.
In a few cases, the testimony of eyewitnesses has convicted innocent people. More importantly, it has rightly convicted a larger number of guilty people; consequently, it continues to be of great value in the American judicial system.
What is the main idea of the passage？
A．Bernard Jackson spent five years in prison for no crime of his own.
B．Eyewitness testimony, although sometimes incorrect, is valuable.
C．Police officers are no better eyewitnesses than civilians are.
D．American courts rightly convict a larger number of guilty people.
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Escaping a fire is a serious matter. Knowing what to do before a fire breaks out can save a life. For example, people should know the safety measures to take before opening a hall door during a fire. Also, make sure everyone knows how to unlock doors that may be in the escape path. At times, a key is needed to unlock a door from the inside. So, keep the key in the lock, or, you can put the key on a key ring and put it where it can be found easily.
If you live in an apartment, know the ways you can use to get out. Show everyone in the family these routes. Stress the importance of using stairways or fire escapes, not elevators.
From most homes and the lower floors of apartment buildings, escape through windows is possible. Learn the best way of leaving by a window with the least chance of serious injury.
In a home fire, windows are often the only means of escape. The second floor window sill is usually not more than 13 feet from the ground. An average person, hanging by the fingertips, will have a drop of about six to the ground. Of course, it is after to jump a short way than to stay in a burning building. Rolling away from the building when you land.
Windows are also useful when you are waiting for help. Often you'll be able to stay in the room for several minutes if you keep the door closed and the windows open. Keep your head low in the window to be sure you get fresh air rather than smoke that may have leaked into the room.
On a second or third floor, the best windows for escape are those which open onto a roof or balcony. From the roof or balcony, a person can either drop to the ground or await rescuer. Dropping onto cement or pavement might end in injury. Bushes, soft earth, and grass can help to break a fall. A rope ladder should be considered when the drop is too great.
In a town where the fire department acts quickly, it may be best to wait for rescuer. Close the doors and wait by an open window for help. Shout for help. Be sure to close the door before opening a window. Otherwise, smoke and fire may be drawn into the room by the draft.
From most homes you can escape a fire through the ______.
A．attic
B．garage
C．windows
D．balcony
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Babies who are breast-fed may be more likely to be successful in life, a new study published Tuesday suggests. The study followed more than 3,000 babies into adulthood in Brazil. The researchers found those who were breast-fed scored slightly higher in intelligence tests in their 30s, stayed in school longer and earned more money than those who were given formula(配方奶粉).
“Breast-feeding not only has short-term benefits, but also breast-feeding has long-term benefits, ” says Bernardo Lessa Horta of the Federal University of Pelotas in Brazil, who led the study being published in The Lancet Global Health.
Doctors have long known that breast-feeding can be good for a baby’s health. This is especially true in poor countries, where water can be contaminated. For instance, a baby given formula in developing countries is 14 times more likely to die in the first six months than one who’s breast-fed. In the U.S., some research has suggested that breast-feeding may raise a baby’s IQ(智商)by a few points. But a recent study with siblings(兄弟姐妹)found little advantage to breast-feeding.
Horta says these previous studies didn’t follow children into adulthood to see if breast-feeding had long-term effects. So Horta analyzed data collected from 3,493 volunteers he and his colleagues have been following since birth. They are now in their 30s. First, the researchers gave the subjects IQ tests. Those who were breast-fed for 12 months or more had IQ test scores that were 3.76 points higher than those who were breast-fed for less than one month, the team found.
When Horta and his colleagues looked at how much education the subjects had gotten and how much money they were making, they also found a clear difference: Those who were breast-fed the longest stayed in school for about an extra year and had monthly salaries that were about a third higher.
1. From the passage, we learn that Horta {A; B; C}.
A. is from Brazil
B. conducts his research in the U.S.
C. has 30 researchers on his team
2. Which of the following about those who were breast-fed is NOT mentioned？{A; B; C}
A. They stayed longer in school
B. They were happier
C. They were smarter
3. Which of the following is TRUE？{A; B; C}
A. Doctors don’t understand the benefits of breast-feeding.
B. Horta is concerned with water contamination in poor countries.
C. Horta’s research project lasted about 30 years
4. The word contaminated in Paragraph 3 is closest in meaning to {A; B; C}.
A. finished
B. interested
C. polluted
5. Which of the following is an appropriate title for this passage？{A; B; C}
A. Researchers Have Pointed Out the Disadvantages of Breast-feeding
B. Researchers Have Found Out the Shortcomings of Formula
C. Breast-feeding Improves Chances of Success
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Chinese Young Volunteers Association (CYVA) was founded in 1994 by young people who are willing to devote themselves to social services. As a national voluntary non-profit organization，the Association improves the overall quality of youth and contributes to the general progress of economic and social development.
Up to now，the association has carried out a series of volunteer activities. Sunshine Dancers is a non-profit program which was started in the Muslim primary school by the association. By hiring professional dance teachers，the association helps children from poor families to realize their dancing dream for free. Another major program run by CYVA is Protecting and Promoting the Rights of China’s Young Migrants(保护并增进青年农民工权益工程). It aims to improve education for migrant youth in order to prevent their early entry into the labor force. Teams of university volunteers will be recruited and trained to provide after-school tutoring to junior high students from migrant schools. 6. What does CYVA stand for？
A. Chinese Young Volunteers Association
B. China Youth Volunteer Association
C. China Youth Volunteering Association
7. When was CYVA founded？
A. In 1994.
B. In 1996.
C. In 1998.
8. Who founded CYVA？
A. A group of local teachers.
B. Young people who are willing to devote themselves to social services.
C. The local government.
9. What is the goal of CYVA？
A. To improve the overall quality of youth.
B. To contribute to the general progress of economic and social development.
C. Both A and B.
10. What are the programs carried out by CYVA？
A. Sunshine Dancers.
B. Protecting and Promoting the Rights of China’s Young Migrants.
C. Both A and B.
