天疱疮患者血循环中存在的自身抗体主要是()
A.IgA
B.IgG
C.IgM
D.IgE
E.IgD
参考答案:B
患者,女性,30岁,牙体缺损拟行冠修复,牙体预备后常规制取印模,在用石膏灌注工作模型时,以下做法正确的是()
A.石膏粉与水调和后,发现水量过多,再次加入石膏粉继续调拌
B.灌注模型时从右侧逐渐到左侧
C.灌注时避免震荡
D.组织面最好选用熟石膏
E.模型在灌注后15分钟不可修整,24小时则容易修整
Jim ______ get up very late. But now he ______ getting up early. [ ]
A. used to; is used to
B. used to; used to
C. was used to; is used to
D. was used to; used to