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　　Tompkinson’s prior donations to the university, while very generous, failed to ______ the magnitude of her latest gift

　　A：compensate for

　　B：portend

　　C：clarify

　　D：predict

　　E：offset

　　F：undermine

　　答案：BD

　　An abundance of nutrient-rich pollution in estuaries causes algae to ______, much as houseplants grow better when their soil contains added fertilizer.

　　A：abound

　　B：proliferate

　　C：stagnate

　　D：coalesce

　　E：collect

　　F：diversify

　　答案：AB

　　Studies of hermaphroditic plants may exhibit sampling bias against self-fertilizing and cross-fertilizing species, thus inflating the frequency of species using a mixed mating system (both self-fertilizing and cross-fertilizing); nevertheless the number of mixed-system species is not ____.

　　A：Self-evident

　　B：Static

　　C：Trivial

　　D：Relevant

　　E：Calculable

　　答案：D

　　A transformative scientific idea that emerged in the eighteenth century was the realization that slow, inexorable geological processes follow the basic laws of physics and chemistry. This seems (i)______ conclusion in hindsight, but its implication—that geological processes in the distant past must have (ii)______ these very same laws—was (iii)______ geologists in the eighteenth and nineteenth and nineteenth centuries.

　　Blank (I)Blank (II)Blank (III)

　　A：an obvious D：followed G：evident to

　　B：a significant E：preceded H：overlooked by

　　C：a controversial F：entailed I：revolutionary for

　　答案：ADI

　　Since many African farmers face a soil fertility problem, providing funding for fertilizer seems _____; closer examination of the data raises some troubling questions, however.

　　A：imprudent

　　B：expensive

　　C：unimpeachable

　　D：modern

　　E：worrisome

　　答案：C

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