阿摩線上測驗
11. Preventative care, a routine _____ performed by a veterinarian, is the most effective method of stopping diseases before they occur.
(A) surgery
(B) checkup
(C) infection
(D) treatment
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統計： A(0), B(8), C(0), D(4), E(0) #3578080
統計： A(0), B(8), C(0), D(4), E(0) #3578080
