静电空气过滤器接地有什么要求?
参考答案:金属外壳接地必须良好。
—Would you like to come to my home for dinner?
—_____. [ ]
A. sure, I'd love to
B. Thank you very much
C. You're so kind
D. Cetainly, I like to
咬肌间隙脓肿切开引流应做哪种切口()
A.下颌骨下缘下2cm绕下颌角做弧形切口
B.口内翼下颌皱襞内侧做纵形切口
C.下颌骨下缘下2cm做平行切口
D.口内翼下颌皱襞处做横形切口
E.下颌骨下缘下1cm以内做平行切口