“Attention, please. Whoever can answer one of my questions______ receive a prize”, the teacher

said in class.

A．might

B．shall

C．should

D．would

高压蒸汽灭菌时，一般需达到的条件是（）

A.115℃，30～60min

B.120℃，15～30min

C.115℃，15～30min

D.121℃，15～30min

E.125℃，15～30min