先叶后花类春花树种多具（）芽，花芽分化多在（）枝上形成。
参考答案：混合；一年生
Put the eggs and sugar in the bowl and _____ together.[ ]
A. cut them up
B. mix it up
C. mix them up
D. mix up them
防治寄生虫病，要贯彻（）的方针
