254.
M: Now some doctors are strongly encouraging arm exercises.
W: Arm exercises? Is that because arms are too fat or too soft?
M: Actually that's not the main reason. They say that arm exercises can make you physically healthy.
W: But I was told that arm exercises could raise your blood pressure.
M: Yes, but the article I read suggests some ways to make up for that.
W: Really? How?
M: By adding leg exercises, so that the arms don't do all the work.
W: And in return, I'm sure that there's a good chance of losing weight.
M: Sounds right to me.
W: So what exercises do the experts suggest?
M: They mentioned quite a few exercises, but one of the most popular ones is cycling.
W: Good, I must try that.

答案解析：
(1) 正確答案為C。根據They say that arm exercises can make you physically healthy.他們說手臂運動能讓你身體健康。可知，專家強烈建議手臂運動的原因是手臂運動可以增進健康，因此C項正確。
(2) 正確答案為B。根據But I was told that arm exercises could raise your blood pressure.可是我聽說手臂運動會讓血壓升高。可知，手臂運動會讓血壓升高，因此B項正確。
(3) 正確答案為A。根據By adding leg exercises, so that the arms don't do all the work.可以增加腿部運動，這樣不用手臂做所有的工作。可知，手臂運動應該和腿部運動搭配進行，因此A項正確。