单选题
- A. How to overcome sleepiness.
- B. How to fight fatigue problems.
- C. How to do exercises.
- D. How to take a brisk walk.
单选题
- A. Those who stay in a small area for long.
- B. People who work with computer all the time.
- C. People who are tired and weak.
- D. Those who sleep enough but feel tired all the time.
单选题
- A. Sufficient sleep.
- B. A brisk walk.
- C. A cup of coffee.
- D. Good mood.