刨削异形薄板时,可在牛头刨床工作台上直接装夹()
参考答案:对
对发现早期病变及指导手术有重要意义的检查为
A.chest CT examination B.regular chest X--ray examination C. B type ultrasound echogram D.fiberbronchoscopy E.expectomtive cytology
肝性脑病
A.血氨升高B.血清淀粉酶升高C.血钙增高D.血清促胃液素增高