下述弹性印模材料可逆的是()
A.印模石膏
B.聚硫橡胶印模材料
C.藻酸盐
D.氧化锌印模材料
E.琼脂
参考答案:E
He was _____ to tell the truth even to his closest friend.
A.too much of a coward
B.too much the coward
C.a coward enough
D.enough of a coward
适宜于哮喘发作时应用的是()
A.氨茶碱注射剂
B.氨茶碱片剂
C.氨茶碱栓剂
D.氨茶碱缓释制剂
E.以上都不是