题海让大学四年没有难题
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单选题 Obviously, a very large and differentiated database would be necessary to perform rigorous tests of causal relationships in the model.(为划线的单词选出正确的词性和意思)

A. 估计的

B. 激烈的

C. 残酷的

D. 缜密的

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时间:2025-07-02 14:53:53

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