暂时性错的临床表现是（）
A.后牙反
B.个别前牙反
C.Ⅲ°深覆、Ⅲ°深覆盖
D.Ⅲ°牙列拥挤
E.上颌侧切牙初萌出时，牙冠向远中倾斜
参考答案：E
There ________ one basketball and two footballs on the floor.
A. are B. is C. be
临时代办
