如何理解幼儿文学的美学特征?
参考答案:稚拙美、纯真美、荒诞美。
Another two months will be needed before the bridge _______.
A.completes
B.is completed
C.has completed
D.will be completed
某患者的基牙颈部有倒凹,制作代型时,用大石膏填补,其结果是()。
A.冠边缘过长
B.冠边缘不密合
C.冠翘动
D.冠咬合高
E.冠邻接关系不良