鸭肝炎病毒的分类属于()
A.疱疹病毒
B.禽腺病毒
C.微RNA病毒
D.细小病毒
E.圆环病毒
参考答案:C
□59÷6,如果商是三位数,□里最小可以填______;如果商是两位数,□最大可以填______.
I don't like the color of this hat. _____ you show me another one, please? [ ]
A. Could
B. Need
C. Must
D. Should