病毒性心肌炎伴发的精神障碍，最多见的临床表现为（）
A.幻觉
B.妄想
C.抑郁发作
D.焦虑情绪
E.行为迟缓
参考答案：D
乳磨牙邻面龋备洞时，哪项是错误的（）
A.鸠尾岬宽度是颊舌尖间距离的1/3
B.轴壁应与牙面平行
C.龈壁向颈部倾斜
D.轴髓壁与牙合髓壁的线角应圆钝
E.龋蚀接近面时可不做台阶
There have been cases some English learners can’t get their message across even though they have memorized a lot of words.
A．which
B．when
C．where
D．what
面时可不做台阶