20.於1997年造成臺灣養豬產業崩潰的是下列何種豬隻水疱性疾病?
(A)foot-and-mouth disease
(B)food-and-mouse disease
(C)vesicular stomatitis
(D)swine vesicular disease
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統計: A(3194), B(107), C(21), D(39), E(0) #1839528
統計: A(3194), B(107), C(21), D(39), E(0) #1839528