车辆伤害包括()等。
A、落物
B、撞击
C、破裂
D、砸伤
E、崩块
参考答案:A, B, C, D, E
The purpose of the in Search of Roots program is to give overseas _____ the chance to learn more about themselves. [ ]
A. Japanese
B. Chinese
C. Canadians
D. Americans
全身消炎药治疗牙周病主要用于
A.牙周炎急性炎症期B.青春期龈炎C.缘龈炎D.增生性龈炎E.妊娠期龈炎