航空公司通过对航线降价到盈利水平以下的价格驱赶竞争公司
P: 之后任何对降价航线的涨价行为都会导致竞争者回来-> C: 这种模式不能长久持续下去
choice b, 任何通过降价方式驱逐竞争者的公司，当新竞争者再出现的时候很有可能还会这么做。-> correct, 航空公司不会只降一次价格
choice e, 当航空公司对特定航线降价，那条航线上面的乘客人数会激增。-> irrelevant, as the argument doesn't turn on what happens during the low-fare period (its most important premises concern what happens after prices are raised back)
* Choice B says that close integration occurs more frequently (or among more markets) than before, but that the degree of closeness of integration has NOT necessarily changed;
* Choice D, along with the original sentence, says that the degree to which the markets are closely integrated has gone up markedly.
A,a vantage point combining with her talent for writing to make her the valuable one.
combining with her talent for writing 作定语修饰point，to make her valuable作定语修饰point或作状语修饰动词combine，to表目的，用在此处逻辑不对，不是为了使她成为最棒的那个，而是时间点加上写作天赋的结果是她成为了最棒的那个
B,所有when+某个动作做状语的都需要特别注意，它表示当（且仅当）发生某个动作时，主句才成立。当和她的写作天赋结合在一起时，时间点使她成为最棒的那个，当不和写作天赋结合时，时间点就不能使她成为最棒的那个，但句意没有这个意思，同时也并不是要强调只有和时间点结合时她才是最棒的这件事
A, 问题主要在于laying the notion of science being based on experiment
首先being based这样的结构是不应该出现的，表被动的动作做定语或状语直接用被动分词就好了，being based改成based；其次，of science和being based on experiment要么都做定语修饰notion，the notion based on experiment建立在实验上的信念，没有以实验为基础的科学合逻辑；要么being based on experiment作定语修饰science，奠定了科学的概念，什么样的科学？以实验为基础的科学，这样的意思没有奠定了科学应以实验为基础的概念合逻辑，laying the notion that science should be based on experiment
抽象性名词做同位语时，要求抽象性名词既可以概括主句内容，题目前半句描述的是一个事实， 可以用finding/phenomenon/fact等词来概括，但用suggestion概括，语义不恰当。
james voiced the idea of going out for pizza, a suggestion that was well received by his hungry friends. 这里主句的内容就可以用suggestion来概括。
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航空公司通过对航线降价到盈利水平以下的价格驱赶竞争公司P: 之后任何对降价航线的涨价行为都会导致竞争者回来-> C: 这种模式不能长久持续下去
choice b, 任何通过降价方式驱逐竞争者的公司，当新竞争者再出现的时候很有可能还会这么做。-> correct, 航空公司不会只降一次价格
choice e, 当航空公司对特定航线降价，那条航线上面的乘客人数会激增。-> irrelevant, as the argument doesn't turn on what happens during the low-fare period (its most important premises concern what happens after prices are raised back)