49. Which advice would the author probably agree with?
(A) Choose more active sports than walking.
(B) Jog 25 minutes a day to start.
(C) Increase your walking distance by one-fourth kilometer each day.
(D) Increase your walking distance by 3 kilometers each day.
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統計: A(5), B(41), C(53), D(1), E(0) #706359
統計: A(5), B(41), C(53), D(1), E(0) #706359