听力原文：W: Exercise, exercise, exercise, we hear so much about it these days that even th

e experts can't agree on which exercises are best. Now some doctors are strongly encouraging arm exercises.

M: Arm exercises？ Is that because our arms are too fat or flabby？

W: Actually, that's not the main reason. They say that arm exercises are an ideal way to become physically fit.

M: But don't arm exercises raise your blood pressure？

W: That they do. But the article I read mentioned ways to compensate for that.

M: How？

W: By adding leg exercise so the arms don't do all the work. Arm exercises alone aren't enough to increase metabolism before fatigue sets in. The more of a body that involves in the exercise, the better.

W: Sounds right to me.

M: So, what exercises do the experts recommend？

W: They mentioned quite a few. But some of the more popular ones are cycling with special bicycles that make you use both your arms and legs, and walking vigorously while wearing arms weights.

M: I must try that. I like to walk a lot.

(20)

A．They don't get rid of flabby arms.

B．They can damage arm muscles.

C．They aren't acceptable to most people.

D．They can raise one's blood pressure.