尖齿铣刀在工具磨床三刃磨前刀面时采用（）
A.碗形砂轮
B.筒形砂轮
C.碟形砂轮
D.薄形砂轮
参考答案：C
Everyone can receive education.That is to say，education is taken as a right rather than a(n)_________．[ ]
A．privilege
B．encouragement
C．assistance
D．dignity
藿香正气散中具有表里同治、升清降浊作用的药物是（）
A.紫苏
B.藿香
C.白芷
D.半夏
E.桔梗
