![](https://static.youtibao.com/asksite/comm/h5/images/m_q_title.png)
[单选题]
两根木棒的长分别是5cm和7cm,现要选择第三根木棒与前两根首尾相接组成一个三角形,若第三根木棒的长为偶数,则第三根木棒长度的取值情况有()
A.3种
B.4种
C.5种
D.6种
![](https://static.youtibao.com/asksite/comm/h5/images/m_q_a.png)
B、4种
![](https://static.youtibao.com/asksite/comm/h5/images/solist_ts.png)
A.3种
B.4种
C.5种
D.6种
B、4种
A.10cm的木棒
B.40cm的木棒
C.50cm的木棒
D.60cm的木棒
A.3cm,4cm,5cm
B.13cm,12cm,20cm
C.5cm,5cm,11cm
D.6cm,8cm,10cm
E.7cm,7cm,14cm
A.5cm, 7cm , 10cm
B.7cm, 10cm, 13cm
C.5cm, 7cm, 13cm
D.5cm, 10cm, 13cm
A.7cm×5cm×3cm,100g
B.8cmx6cmx4cm,100g
C.7cm×5cm×3cm,50g
D.5cmx4cm×2cm,50g
E.6cmx4cm×2cm,100g