66. What is the main purpose of this text?
1. To suggest the readers how to keep fit from routine exercise.
2. To encourage the readers to eat nutritious diet every day.
3. To help the readers take an action in keeping their heart.
4. To persuade the readers to build up a suitable exercising heart rate.
57. Which of the following is NOT true, according to the chart?
1. To gain their maximum benefit from routine exercise, the younger generally have a higher target heart rate zone than the older.
2. If you are 17 years old, the maximum heart rate you could have is 203 beats per minute. relevant to 126 beats per
3. Your pulse of 21 beats per 10 seconds should be minute to get your heart fit. exercise heart rate per
4. You will be the most heart fit if you can build up your minute to 205 at the age of 17 years.