单选题有1，2，3，4，5五个数，如果偶数不能够相邻，问能够构成多少个5位数?
单选题The sustained massive use of pesticides in
单选题What is the least positive integer that is divisible by each of the integers 1 through 10, inclusive?
单选题When - of a certain number is subtracted from the number and then this difference is added with 20, the result is the original number. What is the original number?
单选题What is the least common denominator of 27, 15 and 23?
单选题Typically during thunderstorms most lightning
单选题Which of the following, if true, most logically
单选题Super Express Shipping Company has implemented a
单选题Is x an integer?1 x2 is an integer. 2 x2 is not an integer.
单选题Editorial: Consumers in North America think that
单选题On the day of the performance of a certain play, each ticket that regularly sells for less than $10. 00 is sold for half price plus $0. 50, and each ticket that regularly sells for $10. 00 or more is
单选题Colorless diamonds can command high prices as
单选题Ben and Ann are among 7 contestants from which 4 semifinalists are to be selected. Of the different possible selections, how many contain neither Ben nor Ann?
单选题A store bought 5 dozen lamps at ＄30 per dozen and sold them all at ＄15 per lamp．The profit on each lamp was what percent of its selling price?
单选题To prevent a newly built dam on the Chiff River
单选题What is the sum of the first 8 odd integers that are greater than zero?
单选题Many gardeners believe that the variety of
单选题What is the remainder when a two-digit integer x is divided by 3?1The sum of the tens digit and the units digit is 5.2The remainder is 5 when x is divided by 9.