new round of petition for customers has started with discounted products in Gome and Suning, setting off wave of shopping rush at the end of the year．
A. A;不填
B. The; a
C. A; the
D. A; a
网友回答
A. A;不填
B. The; a
C. A; the
(答案→)D. A; a
解析：根据题意，新一轮的竞争，这里是泛指任何一次竞争。一波购物高峰，这里也是泛指，故用都用不定冠词，选D。