单选题 Another exceptionally tough trading year for the world airline industry saw passenger numbers rise an average of 5.7% but the profit made per seat—the yield—decline as wild discounting took place in vicious fare wars.
【正确答案】 D
【答案解析】[解析] 句意:对于世界上的航空公司来说,又是生意不景气的一年,虽然乘客数量平均增长了5.7%,但是残酷的票价战争中大幅度的折扣使得从每个座位所得利润下降。Vicious邪恶的;残酷的;凶猛的。violent暴力的,猛烈的。victorious胜利的,凯旋的。vigorous精力充沛的。tolerant宽容的,容忍的。