The boy has made rapid progress, and he has already ______ in ______ the exam.
A:success; pass
B:successful; to pass
C:succeed; passed
D:succeeded; passing
奇函数f(x)在3,7上是增函数,在3,6上的最大值是8,最小值是﹣1,则2f(﹣6)+f(﹣3)等于____.