-What do you think of maths?

-My favourite. It's ________ for me to study of all the subjects in school.[ ]

A. more difficult

B. the most difficult

C. less difficult

D. the least difficult

对于RAID卡的COD功能，下列说法正确的是：（）

A、是configurationondisk的简称；

B、对于各种RAID卡来讲，如果所有硬盘都坏了，那么配置信息就完全丢失了；

C、对于联想的产品更换RAID卡理论来讲不会丢失配置信息；