《疫苗流通和预防接种管理条例》将疫苗分为几类管理？（）
A、5类
B、11类
C、2类
D、3类
参考答案：C
It has the oldest castle ______ by later Norman rulers in 1066. [ ]
A. to be constructed
B. constructed
C. having constructed
D. was constructed
欧盟输往中国的货物使用阔叶树木材做木质包装的，可由出口商出具《使用非针叶树木质包装声明》。 ( )
