单选题k and s are two positive integers such that k＞s, if k×s=132, what is the total number of possible values of k?
单选题A certain online form requires a 2-digit code for the day of the month to be entered into one of its fields such as 04 for the 4th day of the month．The code is valid if it is 01，02，03…31 and not valid
单选题4个*号和2个?号一共能够组成多少种可能的密码?
单选题Both x and y are positive integers. Is x divisible by 3?1x-y is divisible by 3.2x-2yis divisible by 3.
单选题If the price of the clothes increases from $20 to $25, what is the percent increase in price?
单选题Three dice, each with faces numbered 1 through 6, were tossed onto a game board. If one of the dice turned up 4, what was the sum of the numbers that turned up on all three dice?1 The sum of two of th
单选题Microbiologist: A lethal strain of salmonella
单选题If x and y are positive integers, what is the value of y?121x+20y=5002x+y=24
单选题What is the perimeter of a rectangle having an area of 105?1The length is greater than twice the width.2The length and width of the rectangle are both integers greater than 5.
单选题Many office buildings designed to prevent
单选题Conventional wisdom suggests vaccinating elderly
单选题What is the value of a?1a2+a-12=02|a|＞2
单选题Does the line L pass quadrant IV？1The slope of L is negative.2y-intercept of line L is-5.
单选题一个销售员以$100买进了一件夹克，他设定卖价等于在买价的基础上加上50％的卖价；在销售这件夹克的时候，这个人又在卖价的基础上打2折出售，那么这个销售员的净利润是多少?
单选题Historian: Newton developed mathematical
单选题Since 1990 the percentage of bacterial sinus
单选题一个长方体形木盒子的长、宽、高分别为6，8，10；一个圆柱形罐头被放置在长方体形盒子中，问在所有的罐头中有最大体积罐头的底面半径是多少?