A.电压
B.电阻
C.电能
D.电功率
答案:C
To eat good food is good ______________ you.[ ]
A. for
B. to
C. on
牙槽骨最常见的破坏方式是()
A.垂直型吸收
B.水平型吸收
C.凹坑状吸收
D.反波浪形骨缺损
E.以上均不是