10. A number of doctors have suggested that many health problems can be ______ by simple lifestyle changes.
(A) reflected
(B) prevented
(C) obtained
(D) prescribed
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統計: A(25), B(207), C(12), D(9), E(0) #3227330
統計: A(25), B(207), C(12), D(9), E(0) #3227330