单选题如果n是正整数，并且n2的个位数是4，n+122的个位数是1，那么n+55的个位数是多少?

单选题Which of the following is equivalent to x2＜3x+4?

单选题 ①Like Germany, but unlike other European nations

单选题ABCD四个人排成一排Quantity A: the probability that B will precede CQuantity B: 12

单选题 ① Except in special situations

单选题 Cotton grass, which grows only in arctic regions

单选题. ①Analyzing levels of proportional representation of American Indians in state and local government jobs is important for several reasons. ②First, the basic idea underlying the theory of representative bureaucracy is that the demographic composition of bureaucracy should mirror the demographic composition of the general public. ③This is because in addition to its symbolic value, increased access to managerial positions may lead to greater responsiveness on the part of policy makers to the policy interests of traditionally disadvantaged groups such as American Indians. ④Second, the focus on higher-level jobs in bureaucracies(as opposed to nonmanagerial positions) is especially important because managerial positions represent a major source of economic progress for members of traditionally disadvantaged groups, as these jobs confer good salaries, benefits, status, security, and mobility. ⑤Third, it is important to know if there has been growth in the American Indian share of more desirable public-sector positions over the last two decades. ⑥For instance, Peterson and Duncan argue that the populations and power of American Indians have been growing in certain states. ⑦Peterson and Duncan also suggest that this growth may reflect the possibility that American Indian populations are becoming more active in nontraditional areas of politics, assimilating into mainstream culture, and securing with greater frequency leadership positions in nontribal government.44. The primary purpose of the passage is to ______

单选题There are five numbers in a list, the first number is less than 4, the second number is between 4 and 5, the third number is 6, the fourth number is between 10 and 20, the fifth number is greater than

单选题Select one number from the set {0, 1, 2, 3, 4, 5, 6, 7, 8, 9}, take down its value and then put it back. Select one number from the set again and also take down its value. If the sum of the two values

单选题. ①Many cultural anthropologists have come to reject the scientific framework of empiricism that dominated the field until the 1970s and now regard all scientific knowledge as socially constructed. ②They argue that information about cultures during the empiricist era typically came from anthropologists who brought with them a prepackaged set of conscious and unconscious biases. ③Cultural anthropology, according to the post-1970s critique, is unavoidably subjective, and the anthropologist should be explicit in acknowledging that fact. ④Anthropology should stop striving to build a better database about cultural behavior and should turn to developing a more humanistic interpretation of cultures. ⑤The new framework holds that it may be more enlightening to investigate the biases of earlier texts than to continue with empirical methodologies.33. The author implies which of the following about most cultural anthropologists working prior to the 1970s? ______

单选题5. The average temperature of the lobster-rich waters off the coast of Foerkland has been increasing for some years. In warmer water, lobsters grow faster. In particular, lobster larvae take less time to reach the size at which they are no longer vulnerable to predation by young cod, the chief threat to their survival. Consequently, the survival rate of lobster larvae must be going up, and the lobster population in Foerkland's coastal waters is bound to increase. Which of the following, if true, most seriously weakens the argument? ______

单选题 ①In 1995, after an absence of nearly 70 years

单选题3. That sales can be increased by the presence of sunlight within a store has been shown by the experience of the only Savefast department store with a large skylight. The skylight allows sunlight into half of the store, reducing the need for artificial light. The rest of the store uses only artificial light. Since the store opened two years ago, the departments on the sunlit side have had substantially higher sales than the other. Which of the following, if true, most strengthens the argument?

单选题X和Y是从集合{1，2，3，4，5，6}中随机挑选出来的不相等的两个数，问在所有的和中，X+Y是完全平方数的概率?

单选题The product of a positive integer a and 1080 is a square number. What is the least value of a?

单选题 ①Among some Native American peoples

单选题. ①Following the United States Civil War (1861-1865), many former slaves in the rural South became sharecroppers (raising a landlord's crop for a share of the profits) or tenant farmers (selling what they raised and paying a share of the profits as rent). ②Most historians tend to depict these African Americans as victims of racism and the farm tenancy system. ③This approach, however, overlooks the role played by such African American rural reformers as Robert Lloyd Smith, founder of the Farmers' Improvement Society of Texas, and Joseph Elward Clayton, the first African American to organize farmers' institutes for the Texas Department of Agriculture. ④Both men advocated comfortable homes and better schools for African Americans; both attributed poverty and illiteracy to causes other than racism, such as insect damage to crops; and both worked to keep Black farmers on the land, although Smith opposed farm tenancy. ⑤Both were also accused by their contemporaries of downplaying the devastating impact of the farm tenancy system on Black farmers and of accommodating racism. ⑥While the extent of these reformers' influence requires more study, clearly their organizations provided a voice for African American farmers seeking to improve their positions in the agrarian South.8. The passage is primarily concerned with ______

单选题Quantity A: -636Quantity B: -637

单选题小明的贮钱罐里一共有26元的硬币，硬币只有两种，5角的和1元的。如果5角的硬币数目小于1元的硬币数目，那么小明最多有多少个5角硬币?