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The plant species that Dr. Kinghom discovered in Puerto Rico proved to be ______
The plant species that Dr. Kinghom discovered in Puerto Rico proved to be ______
游客
2025-06-12
15
管理
问题
The plant species that Dr. Kinghom discovered in Puerto Rico proved to be ______to his medical research.
选项
A、joint
B、useful
C、precise
D、competent
答案
B
解析
根据上下文语义,此处意为“发现的植物种类证实对医学研究有用”,因此应选形容词(B)useful(有用的)。(A)joint表示“共同的”,(C)precise表示“精确的”,(D)competent表示“能干的”。
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