难易程度：★★★
题目题材：医疗保健
GRE argument 104题目：
One kind of brain-scanning device is used by doctors to monitor normal as well as abnormal activity in a patient's brain. The device provides precise measurements of blood flow in the brain, a known indicator of how the brain is working. Unfortunately, the device requires patients to remain completely still with their heads in the scanning machine, which makes a very loud noise. Under these uncomfortable conditions, it is doubtful that doctors can get accurate measurements(1). A new head-mounted device that measures eye movements(2) rather than blood flow and allows patients to move around(3) will undoubtedly provide better brain measurements(4). Thus, the new head-mounted device should replace the older device(6) at all hospitals and research institutions(5).
提纲：
(1)The author's assumption that the older device cannot generate accurate measurements is unwarranted.
(2)The assumption that eye movements are a more accurate indicator of brain activity than blood flow is unfounded.
(3)The new device might also be uncomfortable and cause some other problems, thus may not be preferable by patients.
(4)The author unfairly assumes that the new device would necessarily generate accurate data.
(5)The author fails to consider the cost and feasibility of replacing older device at all hospitals.
(6)Granted that the new device is more advanced, the older one might still have some advantages and still necessary in some hospitals.
注：题目中括号里的数字表明这句话体现的是提纲中第几号缺陷。
无论是GRE issue还是GRE argument，考生都应该养成写提纲的习惯。这种提纲式的GRE写作练习可以帮助考生锻炼写作的逻辑性，而GRE写作高分最重要的得分依据就是作文的逻辑性要强。
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