有五根木条,它们的长度分别是1厘米、2厘米、3厘米、4厘米、5厘米,从它们当中选出3根木条拼成一个三角形,一共可以拼成请选择④③②①9G8k7N)t三角形。/I6p*B'k'j.`4w4n/}(M8Z.B:z
①一个/I6p*B'k'j.`4w4n/}(M8Z.B:z
②两个/I6p*B'k'j.`4w4n/}(M8Z.B:z
③三个/I6p*B'k'j.`4w4n/}(M8Z.B:z
④四个/I6p*B'k'j.`4w4n/}(M8Z.B:z