24. What does “this” in the last paragraph refer to?
(A) The importance of pets in their owners’ lives.
(B) The contribution of pets to medical research.
(C) The difficulty of keeping one’s pet healthy.
(D) The conflict between patients and doctors.
詳解 (共 1 筆)
未解鎖
(A)前句說飼主珍惜寵物關係與它們對其 ...
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