Who is she?
香豌豆的花色有紫花和白花两种,显性基因C和P同时存在时开紫花。两个纯合白花品种杂交,F1开紫花;F1自交,F2的性状分离比为紫花:白花=9:7。下列分析不正确的是()
下列说法正确的是( )
In April, the weather in some places in Shanxi was really changeable. People still remember they have _______ four seasons in a week.