仅猪感染出现临床症状,特征性病变表现为主趾和附趾的蹄冠上出现特征性的水疱的是()
A.口蹄疫
B.猪蓝耳病
C.猪痢疾
D.猪水疱病
E.非洲猪瘟
参考答案:D
解下列关于x的方程:
(1)3(x-2)+x2-2x=0
(2)4x2-3=12x.
I came in tired and happy and badly in need_____ a bath. However, my elder brother insisted there wasn’t much need______ one
A.of; for
B.for; of
C.for; for
D.of; of