Girls used to take fewer advanced math courses than boys but now they are taking just _______.

A．as much

B．so much

C．as many

D．so many

SmartThin（Thin Provisioning）给客户带来的价值有（）。

A.实现存储空间按需扩展

B.降低初次购买成本

C.提高存储资源利用率

D.降低存储系统整体TCO

E.减少数据占用的存储空间