电解加工在模具制造中不可进行（）加工。
A.型孔
B.型腔
C.电解抛光
D.电解磨削
参考答案：D
— I congratulate you _____ your great discovery, Mr. Smith.
— Thank you very much. [ ]
A. in
B. for
C. with
D. on
正常人胰管与胆总管末段开口汇合形成共同通道约
A．90%B．80%C．85%D．95%E．70%
