--- John, I can’t play tennis at all. I wonder if you could teach me.

---        . Just name the day.

A．I’m glad

B．Go ahead

C．If you like it

D．With pleasure

牙科用高速手机灭菌应首选项（）

A．高温蒸汽灭菌法 

B．玻璃球灭菌法 

C．浸泡消毒法 

D．酚类消毒 

E．盐灭菌法