中国数学史上，有一个以长沙命名的什么学派？
参考答案：长沙学派
The award-winning book was written by a teenager, _____ was, indeed, beyond all expectations. [ ]
A. as
B. which
C. what
D. that
基因型AaBb的个体与基因型Aabb的个体杂交，子代出现表现型和基因型种数分别是（）
A.4，4
B.4，6
C.4，8
D.6，6
