鸡的VB2的典型缺乏症为（）.
A.多发性神经炎
B.卷爪麻痹症
C.白肌病
D.夜盲症
参考答案：B
Actually,anyone can be whatever he wants to be, he sets his mind to it. [ ]
A.as far as
B.as soon as
C.as well as
D.as long as
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