理想功是指体系的状态变化在一定的环境条件下，按（）过程进行时所产生的最大功或必须消耗的最小功。
参考答案：完全可逆
用所给的单词的适当形式填空。
1. Lucy likes _____ (make) a yearbook.
2. We hope _____ (be) good friends in the future.
3. Her sister _____ (marry) a doctor last year.
4. Tom _____ (have) supper at home now.
5. Maybe someday I _____ (be) rich.
We sell many things, _____ rice, bread, milk, cakes, tea and so on. [ ]
A. for
B. like
C. with
D. as
