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NO.217
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题目来源 : 填空经典1500题
Select the two answer choices that, when used to complete the sentence, fit the meaning of the sentence as a whole and produce completed sentences that are alike in meaning.

Although most scientists hold that quantum theory and the theory of general relativity ought to be intimately connected, the theories have remained stubbornly _____. 

consistent
unlinked
self-contradictory
estranged
arbitrary
congruent

Select two answer choices.

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