不属于可摘局部义齿的部件是()
A.间接固位体
B.冠内固位体
C.桥体
D.Ⅰ杆
E.邻面板
参考答案:C
She hardly ever has time to relax, ? [ ]
A. does she
B. hasn't she
C. doesn't she
D. has she
关于冷冻干燥包埋法错误的描述是()
A.可保存组织内可溶性物质,防止蛋白质变性
B.可保存组织内酶的活性,减少抗原的丢失
C.可用于免疫荧光标记
D.可用于放射自显影
E.适合电镜标本制备