单选题Store N gives a 50 percent discount on the list price of all its items and Store W gives a 60 percent discount on the list price of all its items．If the list price of the same item is 20 percent highe
单选题5个人并排排成一排，其中甲不能够排在两头，问一共有多少种排法?
单选题Which of the following could be the remainder when 287 is divided by 3?
单选题A certain species of desert lizard digs tunnels
单选题For all real numbers x, the operation x* is defined by the equation x*=x+4, If x* *=10, then x=?
单选题Is the quadrangle a square?1The sum of three interior angles is 270.2Three sides of the quadrangle equals.
单选题求在1至100的自然数中能够被3或者7整除的数的个数?
单选题If the product of the integers w，x，y and z is 770，and if 1＜w＜x＜y＜z．what is the value of w+z?
单选题In a certain box, there are 3 times as many red balls as blue balls. Which of the following is the ratio of the number of red balls to the number of blue balls?
单选题某一矩形的一条边是4+3S，另一条边是8-S，问矩形的周长不可能是下面哪一个?
单选题一批货物中12具有特征A，23具有特征B，13两种特征都具有。如果80件货物既没有特征A又没有特征B，那么一共有多少件货物?
单选题Nutritionists are advising people to eat more
单选题一个试验中有三个事件A，B和C，其中PA=0.23，PB=0.40和PC=0.85。假设事件A和B互斥，事件B和C互为独立事件。那么PA or B和PB or C各为多少?
单选题Sparrow Airlines is planning to reduce its costs
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Is x less than y ?1 x-y+102 x-y-l0
单选题The rate at which a road wears depends on