GRE，全稱Graduate Record Examination，中文名稱為美國研究生入學(xué)考試，適用于除法律與商業(yè)外的各專業(yè)。由美國教育考試服務(wù)處(Educational Testing Service，簡稱ETS)主辦，GRE是美國、加拿大的大學(xué)各類研究生院（除管理類學(xué)院，法學(xué)院）要求申請者所必須具備的一個考試成績，也是教授對申請者是否授予獎學(xué)金所依據(jù)的最重要的標(biāo)準(zhǔn)。 另有，Generic Routing Encapsulation（通用路由封裝）也簡稱GRE。
A threshold problem with the argument is that it assumes that what improves memory and
learning in rats will also improve memory and learning in humans. Although this is entirely
possible, the argument provides no evidence to support this assumption. Without such
194
evidence the argument can be rejected out of hand.
A second problem involves the fact that PEP increasingly breaks down the chemicals
needed for learning and memory as humans age--as the argument points out. Yet the
argument seems to daim that inhibiting PEP will be effective in improving learning and memory
in young people. (The argument refers to students' "parents," implying that proposed human
subjects are young people rather than adults.) Thus the effectiveness of the compounds is
likely to be far less significant than it would be for older people.
A third problem with the argument is that it assumes that learning and memory are the only
significant factors affecting performance in school. Common sense and experience tells us this
is not the case, and that a variety of other factors, such as motivation and natural ability, also
play major roles. Thus the compounds might very well turn out to be largely ineffective.
A final problem with the argument is that it asserts that the compounds will improve
concentration, yet it makes no claim that the same compounds improved concentration in
rats----only that they improved the rats' learning and memory. Thus the argument's conclusion
is indefensible to this extent.
In sum, the argument is weak on several grounds. To strengthen it the argument's
proponent must provide clear evidence that the same compounds that improved learning and
memory in rats will do so in young humans. Moreover, the argument's proponent must show
that poor academic performance is due primarily to learning and memory problems, rather
than to poor concentration, motivation, or other factors. 感謝您閱讀《GRE作文范文大全（115） 》一文，出國留學(xué)網(wǎng)(liuxue86.com)編輯部希望本文能幫助到您。
A threshold problem with the argument is that it assumes that what improves memory and
learning in rats will also improve memory and learning in humans. Although this is entirely
possible, the argument provides no evidence to support this assumption. Without such
194
evidence the argument can be rejected out of hand.
A second problem involves the fact that PEP increasingly breaks down the chemicals
needed for learning and memory as humans age--as the argument points out. Yet the
argument seems to daim that inhibiting PEP will be effective in improving learning and memory
in young people. (The argument refers to students' "parents," implying that proposed human
subjects are young people rather than adults.) Thus the effectiveness of the compounds is
likely to be far less significant than it would be for older people.
A third problem with the argument is that it assumes that learning and memory are the only
significant factors affecting performance in school. Common sense and experience tells us this
is not the case, and that a variety of other factors, such as motivation and natural ability, also
play major roles. Thus the compounds might very well turn out to be largely ineffective.
A final problem with the argument is that it asserts that the compounds will improve
concentration, yet it makes no claim that the same compounds improved concentration in
rats----only that they improved the rats' learning and memory. Thus the argument's conclusion
is indefensible to this extent.
In sum, the argument is weak on several grounds. To strengthen it the argument's
proponent must provide clear evidence that the same compounds that improved learning and
memory in rats will do so in young humans. Moreover, the argument's proponent must show
that poor academic performance is due primarily to learning and memory problems, rather
than to poor concentration, motivation, or other factors. 感謝您閱讀《GRE作文范文大全（115） 》一文，出國留學(xué)網(wǎng)(liuxue86.com)編輯部希望本文能幫助到您。