The campaign for a boycott of petrol stations comes just weeks after motorists in another region took to the streets to ________ their anger over rocketing fuel costs.
句意：就在几个星期前，另一个地区的汽车司机因燃料价格飙升而走上街头抗议，抵制加油站 的运动才刚刚开始。vent发泄感情；放出。smatter涉猎，略知。explode爆发；激增。imbue灌输；使感染。 故选A。