A-A+
We can infer from the passage that______.A．the
问题详情
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
参考答案
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
