His theories were so ______ that few could see what he was trying to establish.A.logicalB.
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His theories were so ______ that few could see what he was trying to establish.
A.logical
B.scholarly
C.theoretical
D.vague
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正确答案:D
解析:(vague含糊的)。句意为:他的理论含糊不清,很少有人明白他想证实什么。 A.logical合乎逻辑的;B.scholarly博学的,好学的;C.theoretical理论上的。
