A.a schedule without gaps | B.breaks and distractions |
C.the limited time | D.the limited energy |
A.prove what the real limiting factor is |
B.show us how busily he needs to work |
C.explain how important a healthy body is |
D.tell us what an strange experience he has |
A.Do You Really Lack Time? |
B.How Can You Work Efficiently? |
C.What Makes Your Energy Limited? |
D.When Should You Do Exercise? |