单选题3×104 is greater than 4×103 by what percent?
单选题 ①Since the 1970s
单选题n is a positive integerQuantity A: -1n-1Quantity B: 0
单选题Which of the following inequalities is equavalent to the inequality -3x+8＞5x-16?
单选题In the following equation, a, b and c each represents a single digit respectively.S=abc+cab+bca, where a, b, and c are all positive integersQuantity A: SQuantity B: 111a+b+c
单选题27. Computer programs are unusual in that they are virtually the only products that have been protected both by patent and by copyright. Patents protect the idea behind an innovation, whereas copyrights protect the expression of that idea. However, in order to win either protection, the idea must be clearly distinguished from its expression. Which of the following can be properly inferred from the statements above? ______
单选题 Between 1970 and 1980
单选题 A three-hour movie replaced three regularly
单选题 At a certain period in Earth's history
单选题3+32+33+…+3k，k为多少时，和能够被6整除?
单选题某一个公司的所有电话分机都是偶数.如果每一个分机号都是由5个数字1，3，4，5，6组成，那么这个公司最多能够有多少个五位分机号码?
单选题在一次宴会上一共有12个人，如果每个人和其他的人各握手一次，那么一共有多少次握手?
单选题What was the units digit of 1713-17?
单选题一个正整数的映像可由颠倒其数字得到，比如321的映像是123，那么一个五位数字和其映像的差一定能够被下面哪一个整除?
单选题 ①In the 1920s
单选题小明的贮钱罐里一共有9.45元的硬币，硬币共有四种。5分硬币和5角硬币的数目相同，1角硬币的个数是5分硬币数目的3倍。那么小明至少有多少个1分硬币?
单选题. ① In 1919 Britain experienced its largest ever reduction in industrial working hours, to 48 per week. ②In Dowie's view the 48-hour week played a central role in Britain's poor economic performance during the 1920s. ③Dowie argued that the reduction, together with rapid wage growth, drove up prices. ④However, Greasly and Oxley found that the First World War (1914-1918) constituted a more powerful negative macroeconomic shock to Britain's competitiveness. ⑤And Scott argues that Dowie's thesis ignores considerable evidence that hourly productivity improves when hours are reduced from a high base level. ⑥Crucially, Dowie's thesis does not acknowledge that hours were reduced to around 48 hours a week for industrial workers in most industrialized nations at this time so far—undermining any potential impact of reduced hours on industrial productivity relative to other nations.39. Which of the following, if true, provides the strongest support for Scott's argument? ______
单选题Which of the following could be the remainder when 287 is divided by 3?
单选题 ①Unlike the static