复合树脂充填时,不宜用氧化锌丁香油糊剂垫底的原因是 ()
A.改变树脂成分
B.阻碍树脂聚合
C.阻碍树脂粘接
D.抗压强度不足
E.改变树脂颜色
参考答案:B
一 What day is it today?
一 ___________
[ ]
A. It is January.
B. It's sunny.
C. It's Monday.
D. It's 8:00 o'clock.
司法解释