如果采用邻面去釉的方法,那么每个牙去除釉质的厚度最多是
A.0.5mmB.0.75mmC.0.25mmD.0mmE.0.45mm
参考答案:C
—Why are you standing here, Tom?
—I can’t see the blackboard clearly. Two tall boys are sitting ____ me.
A.behind
B.in front of
C.beside
D.next to
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