Something like a caste line is emerging centered around knowledge.Individuals who fall too far behind in the（ ）of knowledge at a young age will find it almost impossible to catch up later,no matter how hard they try.A.controlB.masteryC.searchD.pursuit
Something like a caste line is emerging centered around knowledge.Individuals who fall too far behind in the（ ）of knowledge at a young age will find it almost impossible to catch up later,no matter how hard they try.
A.control
B.mastery
C.search
D.pursuit
B.mastery
C.search
D.pursuit
参考解析
解析：in the pursuit of“追求，追赶”，如：in the pursuit of knowledge即对知识的追求，符合文意。A.in control of“控制”；B.mastery“精通，熟练”，如：demonstrate a mastery of Arabic显示对阿拉伯语的精通；C.in search of“寻找”。
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