晚期成年人牙周炎牙槽骨吸收主要是
A．垂直吸收
B．水平吸收
C．凹坑状吸收
D．斜行吸收
E．不均匀吸收
参考答案：B
---Will you come over to Beijing for the may Day holiday?
---I’d like to, but my family the 2010 World Expo in Shanghai during the holiday.
A．are visiting
B．are to visit
C．will be visiting
D．will visit
整料出骨
