30. Proper adaptation of the worker to his occupation will produce _____.
(A) efficiency and success
(B) loneliness
(C) social criticism
(D) slow advancement
(E) failure
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統計: A(311), B(6), C(5), D(7), E(2) #820520
統計: A(311), B(6), C(5), D(7), E(2) #820520