Many Internet users make _____ most of the half-price promotion and it is _____ good opportunity for online shopkeepers to get their names known.

A．a; the

B．/; the

C．the; /

D．the; a

就玫瑰的花瓣而言，下列的叙述正确的是（　　）

A．不能进行光合作用

B．不能与外界发生气体交换

C．不需要消耗能量

D．不进行细胞分裂