溶剂脱沥青装置沥青炉最低流量为()。
A、30t/h
B、35t/h
C、40t/h
D、25t/h
参考答案:A
They're named July 17th ______ their wedding day.[ ]
A. for
B. to
C. as
畸形中央尖属于()
A.牙结构异常
B.牙形态异常
C.牙数目异常
D.牙萌出异常
E.牙损伤