已知反应A2（g）+2B2（g） 2AB2（g）△H ＜0，下列说法正确的

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【单选题】【消耗次数：1】

① 升高温度，正向反应速率增加，逆向反应速率减小

② 升高温度有利于反应速率增加，从而缩短达到平衡的时间

③ 达到平衡后，升高温度或增大压强都有利于该反应平衡正向移动

④ 达到平衡后，降低温度或减小压强都有利于该反应平衡正向移动

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