也符合逻辑

How many miles of river melting and how many trees of blossoms blooming would it take for the season to be called spring?

这句也完全符合逻辑。这是由冬转春，river melting当然指河里的冰，她是为了对称和简练而没有把句子写成How many miles of river ice melting...

而how many trees of blossoms blooming并没有错，用with没有of好，理由有二：一with没有of更对称，二of 比with 更直接，表性质。