用试管凝集试验检验羊布氏杆菌病时,被检血清应用()稀释。
A.0.5%石炭酸+生理盐水
B.生理盐水
C.0.5%石炭酸+10%盐水
参考答案:A
患者,男11岁,左右上下颌第一磨牙呈反、缺失,上颌后缩,下颌前突,前牙反,面中1/3凹陷,下颌可后退至对刃。X线可见,龈下3mm阻生,之间各3mm间隙。
采用方丝弓矫治器,矫治初始弓丝用()
A.0.014英寸不锈钢丝
B.0.016英寸不锈钢丝
C.0.018英寸不锈钢丝
D.0.016英寸镍钛丝
E.镍钛方丝
-What are you looking ______?
-My watch. I can't find it now. Have you seen it anywhere? [ ]
A. up
B. for
C. out
D. back