【专题 GMAT逻辑题】
The heavy traffic in Masana isa growing drain on the city’s economy-the clogging of the streets of thecentral business district alone cost the economy more than$1.2 billion over thepast year. In order to address this problem, officials plan to introducecongestion pricing, by which drivers would pay to enter the city’s most heavilytrafficked areas during the busiest times of the day.Which ofthe following, if true, would most strongly indicate that the plan will be asuccess?
A.Approximately one-fifth of the vehicles in the central business district are intransit from one side of the city to the other.
B.Planners expect that, without congestion pricing, traffic in Masana is likelyto grow by 6 percent in the next five years.
C. Inother urban areas, congestion pricing has strongly encouraged carpooling(sharing of rides by private commuters).
D.Several studies have shown that a reduction in traffic of 15 percent in Masanacould result in 5, 500 or more new jobs.
E. Over30 percent of the vehicles in the city’s center are occupied by more than oneperson.
吃了晚饭后，大姐、二姐和三妹在客厅玩了两盘纸牌游戏，三人按顺序抽取别人的牌，若谁的手中只剩下一个单张，她就算输了。若抽的牌与手中的牌配成了对子，就可以把这对牌打出。这个游戏就是要抽牌配对，防止留下一个单张。如果对子打出之后，手中就没有牌了，则下一个人就从另一个人手中抽。在每一盘将要结束的时候，情况是这样的：(1)大姐只有1张牌，二姐只有2张牌，三妹也只有2张牌；这5张牌包括2个对子和1个单张，但任何人的手中都没有对子；(2)大姐从二姐的手中抽了1张牌，但没能配成对；(3)二姐从三妹手中抽了1张牌，随后三妹从大姐手中抽了1张牌；(4)在两盘纸牌游戏中，每个人每次拿的牌是不一样的；(5)三姐妹都有连输两盘的。请问，在两盘纸牌游戏中，三姐妹中哪一位保持不败？
【专题 GMAT逻辑题】
Which of the following mostlogically completes the argument? Sviatovinis a medieval Moringian text whose author and exact date of composition areunknown. However, the events in the life of Prince Sviatov that the textdescribes occurred in 1165, and in the diagram of Sviatov’s family thataccompanies the text his father, who died in 1167, is identified as stillliving. Thus Sviatovin must have been written between 1165 and 1167, assuringthat.
A. thelife of Prince Sviatov is not the subject of any other medieval Moringian texts
B. theauthor of Sviatovin intended it to provide as accurate a report about PrinceSviatov's exploits as possible
C. thediagram accurately represents the composition of Sviatov's family at thetimeSviatovin was written
D.Sviatovin is the earliest Moringian text whose composition can be dated towithin a few years
E Sviatovin was not written by Sviatov's father himself
有一个神奇的岛，岛上的居民要么总是说真话，要么总是说假话。
在这个岛上有一个数字狂热者俱乐部，有会员40人，他们不是每天都来俱乐部，但是每天至少有4人在。这个俱乐部的会员只用数字回答别人的问题。而且他们回答问题是总是有特殊的癖好：
1.他们只用非负整数来回答问题，且数字永远不会大于当天在场的会员总数。
2.他们对问题有要求，只回答那些正解和被问人无关的问题（举个例子，他们不回答“你多高？”，因为不同人可能不等高，正确答案就和被问人相关了）。
有一天三个当地记者A、B和C来到这个俱乐部，每人问了一个问题，在场的会员都回答了这些问题。
下面是当天A、B和C事后的谈话：
A：我问了在场的会员们他们之中有多少是说实话的。
B：我问了在场的会员们他们之中有多少是不说实话的。
C：上面这两句话不都是实话。
A：对我的问题，这么多回答都不相同。
B：真巧，我的也是呢。
C：对我的问题，这么多回答中至少有两个是不同的。
A：非常有趣的是，对于我的问题，他们的回答加起来正好是个回文数。
B：真巧，我的也是呢。
C：对我的问题，他们的答案加起来不小于在场会员的成员数的平方。
问：那天俱乐部有多少会员？
PS：回文数正读倒读一样，比如1234321，5665，787，99,0等等。
33iq里好像没看到这道题，分享下，据统计，在美国，在20分钟内能回答出这道题的人，平均年薪在8万美金以上，题目如下：
5个海盗抢到了100颗宝石，每一颗都一样的大小和价值连城。他们决定这么分：
1． 抽签决定自己的号码（1，2，3，4，5）
2． 首先，由1号提出分配方案，然后大家5人进行表决，当且仅当超过半数的人同意时，按照他的提案进行分配，否则将被扔入大海喂鲨鱼。
3． 如果1号死后，再由2号提出分配方案，然后大家4人进行表决，当且仅当超过半数的人同意时，按照他的提案进行分配，否则将被扔入大海喂鲨鱼。
4． 以次类推
条件： 每个海盗都是很聪明的人，都能很理智的判断得失，从而做出选择。
问题：第一个海盗提出怎样的分配方案才能够使自己的收益最大化？
①陈述句是命题；
②“至少有一个实数x，使x*x*x+1≤0”是真命题；
③命题“x、y、z不能同时大于0”的否定是“x、y、z同时大于0”；
④若p是真命题，q是假命题，则p∧q是真命题；
⑤若“mx-2＞0”充要条件是“x-2＞0”，则m=1．
其中正确说法的序号是______．
【专题 GMAT逻辑题】
The higher the level of certainvitamins and minerals in the bloodstream, the better a person's lung function, asmeasured by the amount of air the person can expel in one second. The lung functionof smokers is significantly worse, on average, than that of nonsmokers. Clearly,therefore, one way for smokers to improve their lung function is for them to increasetheir intake of foods that are rich in these helpful vitamins and minerals. Which of the following is an assumption on whichthis argument depends?
(A) Smokers are less likely than nonsmokers to have diets thatare rich in vitamins and minerals.
(B) The lung function of smokers whose diets are rich in thosevitamins and minerals is generally better than that of nonsmokers with comparablediets.
(C) People whose diets are deficient in those vitamins and mineralsdo not typically have other health problems in addition to diminished lung function.
(D) Stopping smoking will not typically improve lung functionmore than any diet changes can.
(E) Smoking does not introduce into the body chemicals thatprevent the helpful vitamins and minerals from entering the bloodstream.
