问题描述：
请教三道GRE填空的解题思路,希望有详解～
Scholars' sense of the uniqueness of the central concept of "the state" at the time when political science became an academic field quite naturally led to striving for a correspondingly ___ mode of study.
A) thoroughB) distinctiveC) dependableD) scientificE) dynamic
From the outset,the concept of freedom of the seas from the proprietary claims of nations was challenged by a contrary notion -- that of the ___ of the oceans for reasons of national security and profit.
A) promotionB) explorationC) surveyingD) conservationE) enclosure
The National Archives contain information so ___ that researchers have been known never to publish because to publish because they cannot bear to bring their studies to an end.
A) divisiveB) seductiveC) selectiveD) repetitiveE) resourceful
Scholars' sense of the uniqueness of the central concept of "the state" at the time when political science became an academic field quite naturally led to striving for a correspondingly ___ mode of study.
A) thoroughB) distinctiveC) dependableD) scientificE) dynamic
From the outset,the concept of freedom of the seas from the proprietary claims of nations was challenged by a contrary notion -- that of the ___ of the oceans for reasons of national security and profit.
A) promotionB) explorationC) surveyingD) conservationE) enclosure
The National Archives contain information so ___ that researchers have been known never to publish because to publish because they cannot bear to bring their studies to an end.
A) divisiveB) seductiveC) selectiveD) repetitiveE) resourceful
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