小方要在程序中生成[10,99]之间的随机整数，下列python程序不能实现的是？（ ）
import random a = random.randint(10,99)
import random as t a = t.randint(10,99)
from random import randint a = randint(10,99)
from random import randint as t a = t.randint(10,99)
