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(A) A refrigerator has an evaporator that makes the inside of the refrigerator cold. (B) People used to preserve food by packing it with ice or snow in cold storage areas. (C) Artificial refrigeration was made possible by the compression and evaporation of a volatile substance. | (D) William Cullen developed a method of artificial refrigeration in 1748. (E) Practical uses of vapor-compression refrigeration were introduced in the nineteenth century. (F) CFCs have not been used as refrigerants since they were found to damage the earth’s ozone layer. |
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(A) The Northmen were adept in crafting tools and weapons made of bronze, but the Celts were superior in designing and working in iron. (B) In the Viking invasions of England, the Danish armies destroyed monasteries, some of which contained extensive libraries. (C) King Hrothgar and Beowulf become friends at the end of their lives, after having spent decades opposing each other on the battlefield. | (D) The poem chronicles life in Anglo-Saxon society during the Bronze and Iron Ages when Germanic tribes were invading England. (E) Although Beowulf was written by an anonymous poet, probably a Christian, about 1000 A.D., it was not found until the seventeenth century. (F) Beowulf is still interesting because it has engaging characters, an adventurous plot, and an appreciation for human behavior and relationships. |
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(A) The Upper Paleolithic era extended from 40,000 to 12,000 years ago, a time also referred to as the Ice Age. (B) Net hunting involves the entire community, including women and children as well as men in the hunt for animals. (C) Australian Aborigines work for as many as three years weaving and knotting a net for hunting small game. | (D) Modern net hunting in the Congo and Australia supports new theories that identify women as participants in Paleolithic hunting. (E) The introduction of farming methods during the agricultural revolution changed the status of women. (F) Paleolithic sites such as Dolni Vestonice and Pavlov provide evidence of net hunting that was previously overlooked. |
Describe your favorite place to shop for clothes. Explain why you like to go there for clothes. Use specific reasons and examples to support your response. Preparation Time:15 Seconds Response Time:45 Seconds |
Do you prefer to travel to somewhere you have never been or the place you have ever been? Please Include reasons and details in your explanation. Preparation Time:15 Seconds Response Time:45 Seconds |
Reading Time:45 Seconds Policy on the Usage of Printing Paper The college computer lab has decided to charge students for printing fee when students print ten or more than ten copies at one time. Considering the limited paper resources and printing ink, proper charges can raise the students’ awareness of saving paper. Also, the printer often breaks down after frequent usage and a new printer is badly needed. The printing fee can also cover part of the expenditure on the new printer, the paper and the ink. The fee will be 5 cents for every page and it is a reasonable price if not wasting any pages. |
The woman expresses her opinion towards the university’s decision of charging printing fee. State her opinion and explain the reasons she gives for holding that opinion. Preparation Time:30 Seconds Response Time:60 Seconds |
Reading Time: 45 Seconds Overconfidence Effect The overconfidence effect is a well-established bias which means someone’s subjective confidence in their judgments is reliably greater than their objective accuracy. To be overconfident is to be excessively confident or presumptuous, or to believe that only one is suitable for a certain task or job. Overconfidence is not necessarily a good thing, but there is some good that can come of it for one may overestimate his or her ability and work hard in order to be rewarded, thus leading to top performance of both studies and work. |
The professor gives an example of his son in the lecture. Explain how the example demonstrates the concept of overconfidence effect. Preparation Time:30 Seconds Response Time:60 Seconds |
Briefly summarize the problem and two possible solutions—Then state which solution you recommend and explain why. Preparation Time:20 Seconds Response Time:60 Seconds |
Using examples and points in the lecture, describe the two methods to eliminate soil erosion. Preparation Time:20 Seconds Response Time:60 Seconds |
The Maya used to be one of the greatest civilizations in South America. At its apex, the civilization spanned across Mesoamerica and consisted of more than tan million people. But the society fell into serious decline after 800 A.D. and collapsed shortly after the year 900 A.D. This sudden collapse was most likely due to a serious drought that occurred around the same time. The most compelling evidence in support of the drought theory comes from soil samples taken from various lakes on the Yucatan peninsula. The sediment taken from these lakes act like a kind of record, and by analyzing the amount of iron and titanium in the samples, scientists can look into the past and see how much rain fell at a specific time. Analysis of the samples showed that the driest period on the peninsula was between 800 and 1000 A.D., exactly when the Mayan civilization collapsed. Further analysis shows that this was no ordinary drought, but three prolonged droughts. One prominent scientist proposes that three long droughts occurred between 810 and 900 A.D. The Mayans could have perhaps survived one prolonged drought but three coming in such quick succession must have overwhelmed them. The pattern of collapse also gives scientists a clue as to what happened. Most scientists agree that the Mayan collapse began in the highlands of the south, and then spread to the lowlands in the north. This suggests that a drought forced Mayans go in search for other sources of water in low areas where wells and rivers are more prominent and easier to access. |
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The chest feels tight and breathing is difficult. | √ | |
The face and throat begin to swell. | √ | |
Fatty particles attach to the walls of blood vessels. | √ | |
The body releases histamine into the bloodstream. | √ | |
The blood pressure rises dangerously high. | √ |
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