X线片的读片内容为()
A.冠根比例
B.牙周膜的宽度
C.不良充填体
D.牙槽骨的破坏形式
E.以上均是
参考答案:E
She ______ on a new novel ever since this summer and it is supposed to ______ at the beginning of 2011.
A.had worked; be published
B.had been working; have published
C.has worked; publish
D.has been working; be published
过渡时期的总路线通常概括为( )
A.“一个中心,两个基本点”
B.“四项基本原则”
C.“一化三改造”
D.“一五计划”