单项选择题


A．institutional
B．professional
C．universal
D．fundamental
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单项选择题
A．expensiveB．mechanicalC．flourishingD．intensive
A．expensive
B．mechanical
C．flourishing
D．intensive
单项选择题
The word project (Line 2, Para. 4) refers to ______ .
A．a comprehensive study of juvenile delinquency
B．a full exploration of research designs
C．an extensive research on crime
D．a further investigation into new research techniques
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