9. The early development of _____ young athletes is a decisive factor in being internationally competitive in top-level sports.
(A) promising
(B) fleeting
(C) impermanent
(D) transitory
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統計: A(5), B(0), C(0), D(3), E(0) #4061406
統計: A(5), B(0), C(0), D(3), E(0) #4061406