He has acquired a (comprehensive) knowledge of his subject through reading many new materials and up-to-date publications. 选择能代替括号里的选项A、extensiveB、comparativeC、subjectiveD、excessive
He has acquired a (comprehensive) knowledge of his subject through reading many new materials and up-to-date publications. 选择能代替括号里的选项
A、extensive
B、comparative
C、subjective
D、excessive
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