平缝机夹线器主要是用来调节（）其夹线板张合量一般调在（）比较合适
参考答案：面线张力；0.5-1mm
— I'm really nervous before the competition.
— . Be confident of yourself. [ ]
A. Me, too.
B. Don't laugh at me.
C. Take it easy.
D. Don't go!
牙周袋探诊时使用的力量为
A．10~20g
B．20~25g
C．25~30g
D．30~35g
E．35~40g
