12. They were astonished _____ the news of his escape from prison.
A.for
B.in
C.at
D.to
答案:C
根据汉语意思,完成句子。
1. 这次我想做点不同的事。
This time I want to do _____ _____.
2. — 斯科特能来参加我的生日聚会吗?
— 我不知道,这取决于他的日程表。
— Can Scott come to my birthday party?
— I don't know. It _____ _____ his calendar.
3. 每天练习英语对于我们来说很重要。
It's important for us _____ _____ English every day.
4. 你多长时间去徒步旅行一次?
_____ _____ do you go hiking?
5. 我做作业用了两个小时。
It _____ _____ two hours to do homework.
算法的空间复杂度是指( )。
A.算法程序的长度
B.算法程序中的指令条数
C.算法程序所占的存储空间
D.算法执行过程中所需要的存储空间