单选题The surface distance between 2 points on the surface of a cube is the length of the shortest path on the surface of the cube that joins the 2 points．If a cube has edges of length 4 centimeters，what is
单选题Town X has 50,000 residents, some of whom were born in Town X. What percent of the residents of Town X were born in Town X ?1 Of the male residents of Town X, 40 percent were not born in Town X. 2 Of
单选题When 25 is divided by the positive integer m, the remainder is m-5. Which of the following could be the value of m?
单选题What’s the median of 3，6，5，1，6，7，8?
单选题一列火车A早晨6点从甲地开往乙地，速度为45千米小时，另一列火车B在2个小时后从乙地开往甲地，速度比A快15千米小时，中午12时两车同时经过途中某站丙地，然后再继续前进，问B到达甲地时，A离乙地还有多远?
单选题In a rectangular coordinate system, the set of all points x, y such that x2+y2＜1 comprises
单选题如果M和N被6除得到的余数分别为3和5，那么下面哪一个不可能为M+N的值?
单选题数列{a1，a2，…，an，…}，a1=5，a2=10，an+1=anaan-1，问第几项起就至少有5百万位数字?
单选题If the integer k has remainder 7 when divided by 8, what is the remainder when 3k is divided by 4?
单选题X, Y are in a set which has property P that any real number between X, Y also belongs to the set, which of the following is the set having property P?
单选题If b is the product of three consecutive positive integers c, c + 1, and c + 2, is b a multiple of 24?1 b is a multiple of 8. 2 c is odd.
单选题The difference 942—249 is a positive multiple of 7． If a，b，and c are nonzero digits，how many 3-digit numbers abc are possible such that the difference abc—cba is a positive multiple of 7?
单选题Cocoa grown organically on trees within the
单选题The median of x, 15, 10 and y is 18.5. If x＜y, what’s the value of x?
单选题Rats injected with morphine exhibit decreased
单选题In the first 2 hours after Meadow’s self-service laundry opens, m large washing machines and n small washing machines are in continual use. Including the time for filling and emptying the washing mach
单选题Economist: Paying extra for fair-trade
单选题If x, y, and z are positive integers and 2x=3y=5z=7w, then the least possible value of x+y+z+w is