这篇文章先为大家分享其中的三道题，剩下的三道题目还会在后面继续推出，大家多多加油，经过前面的积累，最终一定能实现质的飞跃。
10: The Hyksos invaded the Nile Delta of Egypt and ruled it from 1650 B.C. Their origin is uncertain, but archaeologists hypothesize that they were Canaanites. In support of this hypothesis, the archaeologists point out that excavations of Avans, the Hyksos capital in Egypt, have uncovered large numbers of artifacts virtually Identical to artifacts produced in Ashkelon, and Ashkelon was a major city of Canaan at the time of the Hyksos’ invasion.
H人侵略了埃及的尼罗河三角州并且从1650B.C开始统治这个地区。他们的出身是不清楚的，但是考古学家怀疑他们是C族的后裔。为了支持这个猜想，考古学家指出H人在埃及的首都AV城发掘出的人工制品中有大相当多的与AS城生产的几乎完全一样，而当H人入侵埃及时，AS城是C族的主要城市。
推理过程：因为两个城市有很多相似的东西 --------》所以两个城市住的人来自于同一部落(种族)。 其GAP在于：需要证明为什么两个城市有相似的东西。结论给出了一种可能，问题是：要找出有没有其它可能。如果没有，结论成立;如果有，结论不成立。
In order to evaluate the force of the archaeologists’ evidence, it would useful to determine which of the following?
A: Whether artifacts from Ashkelon were widely traded to non-Canaanite cities? 如果大量的AS城生产的商品在C族居住城市外都买得到，那就说明在AV城发现的东西有可能是H人从C人那儿买的，而并不能说H人就是C人。正确。
B: Whether significant numbers of artifacts that do not resemble artifacts produced in Ashkelon have been found at Avans? 有其它的城市生产的商品并没有说明为什么AK和AC城有那么多相似的商品。
C: Whether Avans was the nearest Hyksos city in Egypt to Canaan?远近都没有关系，需要知道的是挖出来了一样的东西是不是就证明H人就是C人。
D: Whether Ashkelon after 1550 B.C. continued to produce artifacts similar to those found at Avans? 在之后生产与否不能说为什么有AV城和AK城那么多相似的商品。
E: whether any artifacts produced by the Hyksos after 1550 B.C .have been found in Egypt 同D。
12: Secret passwords are often used to control access to computers. When employees As (?) their initials or birth dates. To improve security, employers should assign randomly generated passwords to employees rather than allowing employees to make up their own.
密码通常被用来控制进入电脑系统的权限。当雇员通常使用他们的名字缩写或生日做为密码，但这样做很容易让人识破密码(这一句是我估计的内容，原题不全)。为了改进安全性，雇主应该采用随机的办法确定密码，并把确定的密码分发给雇员而不是让雇员自己来选定他们的密码。
Which of the following, if true, most seriously undermines the conclusion drawn above?
A: If passwords are generated randomly, it is theoretically possible that employees will be assigned passwords that they might have selected on their own.随机创建的密码有可能和雇员自己创建的密码相同。 但是也有可能不相同，有两种可能是错误答案标志。
B: Randomly generated passwords are so difficult for employees to recall that they often record the passwords in places where the passwords could be easily seen by others. 因为随机的密码太难记，雇员往往会把这个密码写在什么地方，而这些地方不仅雇员本身，其他人也容易看得到。题干的结论是为了增进安全性，也就是说让别人不要那么容易的猜到密码，而这个答案提示的就是如果采取题干中的提议，那不仅没有增进反而是使得更无安全性。正确。
C: Computer systems protected by passwords are designed to ignore commands that are entered by employees or others who use invalid passwords. 这个是密码的作用，和结论无关。
D: In general, the higher the level of security maintained at the computer system, the more difficult it is for unauthorized users to obtain access to the system.结论是改变密码创建方式和增进安全性之间的关系，这个答案明显和结论无关。
E: Control of physical access to computers by the use of locked doors and guards should be used in addition to passwords in order to maintain security 同D
16: In recent years, networks of fiber-optic cable have been replacing electrical wire for transmitting telecommunications signals. Signals running through fiber-optic cables deteriorate, and so the signals must be run through a piece of equipment called a regenerator before being transmitted father. Light-Line is the leading manufacturer of signal regenerators. Therefore, Light-line is one of the companies that will most benefit if new long-distance fiber-optic telecommunications networks are constructed.
最近几年，网络有用来传递电信信号的电子电缆被纤维光学电缆所取代。通过纤维光学电缆传送的信号会变弱，因此不得不加装一个称为再生器的设备以将信号送得更远。L公司是信号再生器的头号生产商。因此，L公司将成为改用缆线最受益的公司之一。
Which of the following, if true, casts the most doubt on the prediction about light-ling’s prospects? 找一个理由来说明L公司的前景并不是那么乐观。
A: Telecommunications signals sent along electrical wires can travel much farther than signals transmitted through fiber-optic before needing to be regenerated.要换缆是题干给出的事实之一，也是结论的前提。给出的事实之二是装纤维光学电缆就会装再生器。所以装再生器前的两种电缆比较是无意义的。
B: Expanding its production of regenerators will require Light-line to spend proportionately more on labor and materials. 成本的增加会影响利润，但是我们不知道利润的增加和成本增加的比例，所以存在两种可能，那么就是错误答案标志。
C: The volume of signals that a fiber-optic cable can carry is several thousand times greater than the volume that can be carried by an electrical wire of similar size.和前提及结论都无关。
D: There are technologies that enable telecommunications signals to be transmitted without either wire or fiber-optic cable. 也就是说有可能不需要使用再生器。结论是如果纤维光纤线开始铺设的话，那么L公司就成为最获得的公司之一。这个选项的含义在于让if后面的话有可能不会发生，如果纤维光纤维网络不铺设，L公司当然就不会因为生产再生器而获利。从这点考虑好象是正确的。
从另一点，根据GMAT紧贴题干的原则，其结论说L可以赚钱本身就有一个前提那就是F线会铺设，需要推翻的是即使铺设F线，L公司也不大可能赚很多钱，这点考虑，好象E是更好的?
E: Several manufacturers are developing regenerator technologies that will allow signals to be transmitted many times farther than at present before requiring regeneration.这些公司是否包括L公司不得而知。而且再生器的品质好坏和结论没有直接联系。
但是E选项有一种解释好象又可以成为正确答案：那就是再生器的安装是为了让信号送达到更远的地方。比如以前要1公里安装1个，但是技术改进后，10公里才需要安一个。也就是说再生器的需求量会下降。那么无论L公司是不是在属于这个选项中提及的“几个公司”之一，其销售量都会受到影响。
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