单项选择题

第 60 题测量运动强度最直接、简单、易行且准确的指标是（）

A.?A心率
B．?B自觉运动强度
C．?C最大摄氧量
D．?D各种活动的代谢当量

你可能感兴趣的试题

单项选择题

A $500,000 bond issue sold at 98. Therefore, the bonds ______.

A、sold at a discount because the stated rate of interest was lower than the effective rate
B、sold for the $500,000 face amount less $10,000 of accrued interest
C、sold at a premium because the stated rate of interest was higher than the yield rate
D、sold at a discount because the effective interest rate was lower than the face rate

单项选择题

以下哪种模式不是AFM的工作模式

A、轻敲模式
B、接触模式
C、振幅调制模式
D、电流调制模式