Many people believed the fake news,so the panic -----across

set off v.出发,动身,使爆炸,引起,使爆发,抵销,分开,衬托
got off v.确保 下车 生气 受到惩罚 结识 进攻 一开始 熟络 逃脱
参看例句I had no sooner got off the ship than I was assailed by a man who wanted to sell me a diamond ring.
我刚刚下了船,一个想卖给我钻石戒指的人便向我发动了进攻.
所以我觉得应该是取了上述进攻的意思吧~仅个人观点~
再问： 那么 如果选set off 又错在哪里呢？