领发和登记单位的武器、弹药和军械装具是（）的职责。
A、运输军械科科长
B、军械助理员
C、军械员
D、战斗班班长
参考答案：C
Tom played ________part in a film at________ age of six，which made him famous.
A．the；the
B．a；the
C．a；/
D．the；/
If you buy more than ten, they will knock 20 pence off________.
A．a price
B．price
C．the price
D．prices
