由于髓减脑消,神机失用而致的以呆傻愚笨为主要临床表现的神志疾病是()
A.郁病
B.癫病
C.健忘
D.痴呆
E.狐惑
参考答案:D
________ as the “first lady of speech”,Dr, Lillian Glass is recognized as one of the world's leading experts on communication skills.
A.Knowing
B.Having known
C.Known
D.To be known
卫生桥的桥体与黏膜应不接触,其间一般至少要留出多大间隙
A.1mm以上
B.4mm以上
C.5mm以上
D.3mm以上
E.2mm以上