竞拍属于（）定价方法。
A.弹性定价
B.竞争导向定价
C.价值认知定价
D.一口价
参考答案：A
he is poor, he’s ready to help his friends who are in trouble, which makes him very popular.
A．Although
B．However
C．As
D．Whether
某地区为响应“人人遵守交通规则从我做起”的口号，而施行对第一个不闯红灯的人进行500元的奖励，对此你怎么看？
