黄色猫与黄色猫交配,子一代中黄猫与黑猫的比例是3:1,若用子一代黄猫与黑猫交配得到子二代,子二代中黄猫与黑猫的比例是( )
Where are the chairs?
What’s name? She’s YangLing.
Whatyou like?some biscuits.
some juice in the bottle.
What are these?