这题看不懂,P is the set of positive factors of 20 and Q is the set of positive factors of 12.If x is a member of set P and y is the member of set Q,what is the greatest possible vaule of x-y?答案是19.

这题看不懂,P is the set of positive factors of 20 and Q is the set of positive factors of 12.If x is a member of set P and y is the member of set Q,what is the greatest possible vaule of x-y?答案是19. Nothing in the world is too hard to do if we set our minds on it.看不懂! the television set is on where the story is set? The future is not set. what is the story set? Let g be the function defined on the set of all real numbers by(继续) g(x)=1 if x is rational and g(x)=e^x if x is irrational.Then the set of numbers at which g is continuous is(a)the empty set(b){0}(c){1}(d)the set of rational numbers (e)the set o 一道英语问题：Which letter is missing?Which letter is missing（哪一个封信是失踪的）?1、D A J L B M E H F C I P O K N _____2、p f e k m g i a c o n b h l d _____貌似是选择,这题我看不懂, if M is above N and O,and N is above O and below P,which one of the followinA .M is not above.B.O is above N.C.P is above O.D.O is above P. my duty is----------(set)up the stage SAT （英文）In the diagram above,circle T represents the set of all multiples of 10,circle N represents the set of all negative numbers,and circle O repersents the set of all odd integers.Which of the following numbers is in the set that the shad 关于python里面的set,set之后的集合元素是如何让排列的RT,看下面的例子,>>>set('cheeseshop')set(['c','e','h','o','p','s'])>>>set('shop')set(['h','s','o','p'])>>> set('01234')set(['1', '0', '3', '2', '4'])>>> set('1234')set(['1', ' Are the set of the keys ..? 还是Is the set of keys .? He got the color TV set at a high p( ). SAT数学题概率题求解答If n and p are to be selected at random from sets N and P respectively,what is the probability the n/(2p) will be a member of set 求讲解解题思路N {12,18,2,6}P {1,4,2,3} Set the 翻译“this is a story one of the students set in”这句话.. How much is the TV set?How much ____ the TV set ______?