单选题If the integer k has remainder 7 when divided by 8, what is the remainder when 3k is divided by 4?

单选题A triangle has one side of length 5 and another side of length 14. What are the greatest and least possible integer values for the length of remaining side?

单选题 ①Historian E

单选题集合{1，2，3，4，5}有多少个包含元素1的子集?

单选题. ①The North American red squirrel has expanded its range into Indiana in conjunction with an increase in the fragmentation of forests due to agriculture and with a decrease in the number of gray squirrels, whose population is sensitive to forest fragmentation. ②Red squirrels tend to hoard food in a central location, while gray squirrels are scatter hoarders. ③Burial of nuts by scatter hoarders is highly beneficial for the regeneration of nut-producing trees. ④Red squirrels would have to collect 1,000 walnuts to achieve the same germination success that results from the handling of 150 walnuts by gray squirrels. ⑤If red squirrels successfully colonize the fragmented landscapes of Indiana in response to decreasing numbers of gray squirrels, they may not compensate completely for the loss of gray squirrels as seed dispersers.11. The passage implies that compared with gray squirrels red squirrels ______

单选题If a1=0, an=an-12+4, which of the following is approximately to a100?

单选题 In the shallow end of Lake Tomwa

单选题If the numerator of a certain fraction is doubled and the denominator is decreased by 5, the new fraction is equivalent to 23. If the original fraction is equivalent to 27, What is the sum of the nume

单选题. Elizabeth Bishop's Complete Poems(1927-1979) has come to seem to most of its readers so achieved and sufficient as a life's work that it is hard not to lose sight of how slowly Bishop wrote poems and of how few poems, finally, she completed. But Bishop herself never ceased to find her productivity inadequate. The size and pace of her output were always in her eyes a failing (vaguely moral in complexion) for which she apologized throughout her career, although, as I will argue in this essay, Bishop's inability to write more poems than she did was also a refusal to do so. The small, manageable size of Bishop's body of work has facilitated its extraordinary critical reception since her death. (Robert Lowell, whose oeuvre is so much larger, has never had a complete edition of his poetry published.) Yet the size of her work is also a sign of Bishop's alienation, that is, her uneasy, resistant relation to the literary culture that today claims her as the major poet of her generation.31. The passage indicates that the small size of Bishop's body of work contributed to bringing about which of the following? ______

单选题在某一种溶液中，牛奶、酒精、水的比例是4：100：200；现在溶液发生了改变，牛奶、酒精的比例增倍，而牛奶、水的比例减半，如果改变后的溶液一共含有1000立方厘米的酒精，那么溶液中含有多少立方厘米的水?

单选题在一个数列中，第一项和第二项分别是2和4，随后的每一项都是前面各项的和，如果第10项的值是n，那么第15项是多少?

单选题 ①San Lorenzo

单选题. ①Prominent among theories of the function of sleep is Meddis' immobilization hypothesis, which holds that sleep, rather than serving a restorative function, plays a protective role during times that animals cannot be usefully engaged in other activities. ②Meddis reasoned that animals not immediately threatened by predators would be safer if they passed the time sleeping. ③Sleep would prevent an animal from moving or responding to nonthreatening stimuli in ways that might attract the attention of predators. ①However, that hypothesis cannot easily explain why one often observes a rebound in sleep time or intensity following a period of sleep deprivation. ②Neither does the hypothesis explain the existence of various states of sleep, which themselves may be associated with different functions.31. According to the passage, the immobilization hypothesis fails to account for which of the following facts? ______

单选题If x, y and z are positive integers such that x is a factor of y, and x is a multiple of z, which of the following is NOT necessarily an integer?

单选题standard deviation is 4Quantity A: 出现在区间60，64 的概率Quantity B: 出现在区间64，68 的概率

单选题. ①The expectation that science is a stable body of relatively objective knowledge on which the law can draw to settle legal controversies may seem benign. ②However, this expectation often corresponds to a romantic notion of the scientific enterprise and thereby eclipses not only the instabilities and controversies within science itself, but also the social and rhetorical aspects of even the best science. ③We see the idealization of science in law whenever there is a presumption that if two scientific experts disagree, one of them must be a "junk scientist". ④This presumption ignores the theoretical presuppositions and limitations of data that lead to genuine scientific disputes. ⑤We also see the idealization of science in law whenever we associate "bias, interest, and motivation" with unreliable expertise. ⑥This association missed the practical advances made by scientists who have strong theoretical biases, institutional interests, and financial motivations. ⑦Finally, we see the idealization of science in law whenever a legislator, administrator, or judge demands certainty from science, not recognizing its probabilistic nature and dynamic history. ⑧It is neither a critique of scientific progress nor an exaggeration to acknowledge scientific debates, the conventional aspects of scientific methodology, the importance of networking and "social capital" with respect to publications and grants, and the persuasive elements in scientific discourse. ⑨To think that these features are somehow markers of bad science is to idealize science.20. The primary purpose of the passage is to ______

单选题. ①Although some skeptics points to Arctic places such as the high latitudes of Greenland, where temperatures seem to have fallen, a recent scientific report concludes that in recent decades average temperatures have increased faster in the Arctic than elsewhere. ②Scientists have long suspected that several factors lead to greater temperature swings at Earth's polar regions than elsewhere. ③First, most of the Arctic is covered in snow and ice, which are highly reflective; if snow and ice melt, the exposed soil, which absorbs heat, serves to accelerate warming. ④Second, the polar atmosphere is thin, so little energy is required to warm it. ⑤Third, less solar energy is lost in evaporation at the frigid poles than in the tropics.34. The passage mentions which of the following as factors that might lead to large temperature swings in Earth's polar regions? ______

单选题There are 120 employees in a certain company. If 36 of the employees are in the union, what percent of the employees are not in the union?

单选题从两个集合{8、9、10、11、12、13、14}和{15、16、17、18、19}中分别随机挑出一个来并且相加，问它们的和最多有几种?

单选题. ①The poet Paul Lawrence Dunbar (1872-1906) was the premier Black writer of poetry that used the dialect of rural African American of the southern United States. ②Although Dunbar's works were both popular with readers and acclaimed by literary critics during his lifetime, after the First World War a radical shift occurred, at least in critical opinion of his poetry, and twentieth-century critical evaluation of his work has been generally negative. ③Some critics attacked his work on social grounds for failing to challenge plantation stereotypes of African Americans. ④Other critics, such as the post James Weldon Johnson, argued from aesthetic grounds that dialect poetry in general was too limited as an artistic medium, and capable of producing only two effects: pathos and humor. ⑤The negative critical trend only began to reverse itself in the 1970s, when scholars began to emphasize the importance of mythic, psychological, and historical dimensions of Dunbar's works, focusing on the interior and exterior realities of African American life after the Civil War.41. Which of the following general criticisms of dialect poetry is mentioned in the passage? ______