It is believed that on December 21st, 1891, the first basketball game in _____ history was played．Then in 1936 in Berlin, it became _____ Olympic event.

A．不填; an

B．a; an

C．the; the

D．不填; the

骨性前牙反牙合的诊断标准不包括（）

A.近中磨牙关系

B.ANB角大于0度

C.下颌不能后退至前牙对刃

D.伴有不同程度的颌骨大小、形态和位置异常

E.前牙代偿明显