主切削刃分布在铣刀圆拄面的立铣刀具是（）
A.端面立铣刀
B.球头立铣刀
C.键槽铣刀
D.环行铣刀
参考答案：A
—Look! That teacher is explaining something to her students again and again!
—_______teacher she is!
A．How patient
B．What patient
C．How a patient
D．What a patient
粪便嵌塞患者的护理措施有哪些?
