电视机用阴极射线管(彩色)
参考答案:19(8540.1100)
患者,男,30岁,2年前右上后牙疼痛,经治疗痊愈,但充填物反复脱落,要求作相对永久的治疗。查:叩痛(-),稳固,远中邻面大面积龋,银汞充填,充填物完整。若患者要求做全冠修复,应推荐生物学性能最佳的修复材料是()。
A.树脂
B.镍铬合金
C.钴铬合金
D.镍钛合金
E.金合金
— Does Ted tell you if he _______ next Sunday?
— No, he doesn't. But if he _______, I'll give you a ring. [ ]
A. will come; will come
B. comes; will come
C. comes; comes
D. will come; comes