问题:单选题The population of peregrine falcons declined rapidly during the 1950’s and 1960’s and reached an all-time low in the early 1970’s. The decline was attributed by scientists to the widespread use of the pesticide DDT in rural areas. Which of the following, if true, gives the strongest support to the scientists’ claim?A DDT was not generally in use in areas devoted to heavy industry.B In the time since the use of DDT was banned in 1972, the population of peregrine falcons has been steadily increasing.C Peregrine falcons, like other birds of prey, abandon eggs that have fallen out of the nest, even if the eggs remain intact.D Starlings, house sparrows, and blue jays-birds the peregrine falcon preys on were not adversely affected by DDT in their habitats.E Other birds of prey, such as the osprey, the bald eagle, and the brown pelican, are found in the same areas as is the peregrine falcon.
Thursday, November 9, 2023
问题:单选题A study by a group of dentists has concluded that regular use of a certain brand of mouthwash is as effective as flossing in preventing gum disease. The mouthwash company has released a television ad suggesting that people who do not like flossing can now rely solely on mouthwash and brushing to maintain good dental health. A leading manufacturer of dental floss brought a lawsuit against the mouthwash company demanding that the advertisement be discontinued on the grounds that it is misleading. Which of the following, if true, provides the strongest support for the dental floss company’s claim that the advertisement is misleading?A The dental floss manufacturer is concerned that it will lose market share in the dental health market because the advertisement encourages people to switch from dental floss to mouthwash.B The dental floss company claims in its own advertisements that brushing and flossing after every meal is the most effective way to maintain good dental health.C Although mouthwash is an effective deterrent to gum disease, it is less effective than dental floss at removing plaque and preventing cavities between teeth.D Per usage, mouthwash is three times more expensive than dental floss, if the recommended amounts of both products are used.E The dentists who conducted the study on the effectiveness of mouthwash in preventing gum disease obtained their funding for the study from a company that manufactures mouthwash.
Tuesday, November 22, 2022
问题:单选题The author of the passage most likely mentions “Little Green Men” in the first paragraph for what purpose?A To poke fun at the ignorance of most science fiction readersB To introduce a daunting challenge that will have to be addressed before human interstellar space travel can become possibleC To draw a comparison between the attempts of humans to voyage in space and the more successful attempts of other civilizationsD To draw an amusing distinction between a supposed danger of space travel, as presented in the popular media, and the actual challenges posed by interstellar space travel, as perceived by scienfistsE To suggest that the concept of human interstellar space travel is as much of a myth as the “Little Green Men” that appears in science fiction movies and television programs
Wednesday, November 9, 2022
问题:单选题What is the purpose of the final sentence of the passage?A To express pride in the cultural treasures of Athens.B To refute the argument that more people can see the Elgin Marbles at the British Museum than at the Acropolis.C To comment on the relative number of tourists at two of Europe’s most famous tourist attractions.D To express concern that the large number of tourists on the Acropolis will damage the Elgin Marbles, should they be returned.E To provide an appropriate end to a rousing debate.
Thursday, April 6, 2023
问题:问答题Is y between 1 and 2, exclusive? (1) y2 is less than y (2) y2+y is between 1 and 2, exclusive
问题:问答题If a is an integer, is b an integer? (1) The average (arithmetic mean) of a and b is an integer. (2) The average (arithmetic mean) of a, b, and b+4 is a.
Friday, April 21, 2023
问题:单选题Although many people would not believe it, the mosquito is actually the most dangerous animal in Africa. While the bite of the black mamba is invariably lethal when untreated, this dreaded snake kills only a few dozen people per year. Hippopotami, with their immense strength and foul dispositions, kill hundreds of people per year in rivers and lakes, but the mosquito is still more dangerous. Mosquitoes bite hundreds of millions of people in Africa every year, and they infect over a million each year with malaria, a disease that is often fatal. Which of the following questions would be most useful in evaluating the claim made above regarding the mosquito?A Could a person survive an attack by a black mamba if that person received prompt medical attention?B What criteria are used to determine which animal is the “most dangerous” animal?C Could the incidence of mosquito bites be decreased through the judicious use of pesticides and insect repellent?D Does malaria kill more people per year in Africa than tuberculosis?E How does the percentage of people who survive hippopotamus attacks in Africa each year compare with the percentage of people who survive mosquito bites?
Tuesday, April 25, 2023
问题:单选题The main purpose of this passage is to ______.A Trace the historical progression of tea from its origins to the present day.B Give brief highlights from the history of the cultivation of tea.C Provide an anecdotal account how tea became a drink.D Highlight some important elements of the history of preparing and drinking tea.E Argue against the notion of tea drinking as a valid social art.
Friday, March 22, 2024
问题:单选题The situation involving the repatriation of the Elgin Marbles to Athens is most similar to which of the following ______.A A Native American tribe in Oregon requests that a museum in Chicago return some ceremonial masks that could help in fundraising efforts to build a proposed museum in Portland.B The nation of Peru in South America threatens the nation of Ecuador with military action if Ecuador does not hand over various gold artifacts of the Inca Empire, which originated in Peru.C The National Archeology Museum of Cairo in Egypt requests that the Louvre return eight mummies from the time of Ramses the Great for the Gairo Museum’s new exhibit hall dedicated to artifacts from Ramses’ court.D The nation of Greece requests the nation of Turkey to provide Greek archeologists with free access to ancient Greek sites on the Ionian coast of Turkey, and to transfer any cultural artifacts found there to the National Archeology Museum in Athens.E A museum in Baton Rouge, Louisiana, requests that the Texas History Museum in Austin, Texas, send the original “Lone Star” flag to Baton Rouge for a new exhibit entitled, “Texas: Our Neighbor to the East.”
Saturday, October 7, 2023
问题:单选题Approximately $120 billion in venture capital is estimated as having poured into technology stocks during the late 1990s, creating a valuation bubble that burst in 2000.A Approximately $120 billion in venture capital is estimated as having poured into technology stocks during the late 1990s, creatingB During the late 1990s approximately $120 billion in venture capital is estimated to have poured into technology stocks and createdC During the late 1990s it is estimated that there was approximately $120 billion in venture capital that was poured into technology stocks, creatingD It is estimated that during the late 1990s approximately $120 billion in venture capital poured into technology stocks, creatingE It is estimated that there was approximately $120 billion in venture capital that poured into technology stocks during the late 1990s and created
Thursday, September 22, 2022
问题:单选题Under SEC guidelines, a company in this situation is required either to submit revised financial statements or that they withdraw their plans for a public stock offering.A that they withdraw their plansB to withdraw its plansC that it withdraw planningD to have been withdrawn from their plansE it should withdraw its plans
Thursday, November 24, 2022
问题:单选题The author most likely mentions James Joyce’s childhood, family, and education to serve what purpose?A To suggest that he had to write in order to make a livingB To suggest that he became a writer because of his father’s influenceC To provide the background and cultural context for his literary workD To provide evidence that his literary genius was present when he was a childE To explain his opposition to Catholicism and socialism in his later life
问题:单选题If the area of a square with sides of length 8 centimeters is equal to the area of a rectangle with a width of 4 centimeters, what is the length of the rectangle, in centimeters?A 4B 8C 12D 16E 18
问题:单选题According to the information given in the passage, sulfur dioxide emissions are linked to all except which of the following phenomena?A Reduced visibility in the eastern United StatesB Damage to the ozone holeC Increased rates of asthmaD Acid rainE Damaged forests
Friday, November 17, 2023
问题:单选题Rising tides of unemployment claims across the state has led the governor to declare the economy to be in a state of emergency.A Rising tidesB Because the rising tideC The tide is risingD The rising tideE The rising of the tide
Tuesday, November 14, 2023
问题:单选题Chorioretinitis is an inflammation of the eye that normally effects only small children, and it usually can be treated with antibiotics.A effects only small childrenB effects small children ordinarilyC affected small childrenD affects small childrenE affects only small children
Thursday, February 16, 2023
问题:问答题Is 34x5? (1) x20 (2) x5
Tuesday, December 26, 2023
问题:问答题Two cyclists are racing up a mountain at different constant rates. Cyclist A is now 50 meters ahead of cyclist B. How many minutes from now will cyclist A be 150 meters ahead of cyclist B? (1) 5 minutes ago, cyclist A was 200 meters behind cyclist B. (2) Cyclist A is moving 25% faster than cyclist B.
Saturday, November 11, 2023