-----Could you do me a favor and take these books to my office?

-----Yes, _____.

A．for pleasure

B．I could

C．my pleasure

D．with pleasure

带孔铣刀在卧式铣床上装刀顺序是；将刀杆插入主轴孔内并拉紧，在刀杆上套入定位套筒，套入盘状铣刀，在套入套筒，旋入锁紧，装上吊架并固定，最后旋紧（）。