28. What does Dr. Murphy say will ensure Mark's continued success?
(A) Contacting a nutritional expert for advice
(B) Consistently sticking to his program
(C) Refusing to eat certain foods
(D) Keeping a food and exercise diary
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統計: A(16), B(132), C(4), D(6), E(0) #2351556
統計: A(16), B(132), C(4), D(6), E(0) #2351556