题干
Liu Yun's hair is 18 cm. Chen Jie's hair is 4 cm shorter than Liu Yun's. How long is Chen Jie's hair?
A：14 cm.
B：22 cm.
答案(点此获取答案解析）
A
Liu Yun's hair is 18 cm. Chen Jie's hair is 4 cm shorter than Liu Yun's. How long is Chen Jie's hair?
A：14 cm.
B：22 cm.
,它的花药离体培养所得到的植株具有的染色体组是：