如图,下列结论:①∠A >∠ACD;②∠B+∠ACB=180°-∠A;③∠B+∠ACB<180°;④∠HEC>∠B.其中正确的是___________ (填上你认为正确的所有序号).
![](https://img.xkw.com/dksih/QBM/2013/8/19/1573677240541184/1573677246627840/STEM/952fe6be06ea4238985d053a623ca746.png?resizew=136)
更新时间:2016-12-05 18:37:27
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