Which of the following is not non-surgical treatment for caries lesion？
Application of fluoride
B. Cavity preparation
C. Remineralization therapy
D. Antimicrobials
E. Patient education
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Which is not the non-mechanical rotary techniques of dental caries in the following?
Air abrasion
B. Tunnel cavity preparation
C. Atraumatic resin therapy (ART)
D. Chemo-mechanical technique
变桨功能的车间调试完成后，变桨角度应该为（）度。
A. 0
B. 91
C. 95
偏航系统车间调试完成后，偏航角度应为（ ）度。
A. 0
B. 扭缆左限位
C. 扭缆右限位
D. 180
在变桨运行过程中，在用万用表检测变桨编码器的信号A与电源负之间的电压值时，数值应该约为（ ）V。
A. 0V
B. 2-3V
C. 5V
D. 不定值
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