We can infer from the passage that______.A.there is little difference between specializati

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We can infer from the passage that______.

A.there is little difference between specialization and professionalisation

B.amateurs can compete with professionals in some areas of science

C.amateurs have national academic societies but no local ones

D.professionals welcome amateurs into the scientific community

热搜:mvb总线与can总线的关系

答案解析

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  • 正确答案:B
    解析:从第三段相关内容“The overall result has been to make entrance to professional geological journals harder for amateurs,a result that has been reinforced by the widespread introduction of refereeing,first by national journals in the nineteenth century and then by s