反映运动治疗强度的指标有________、________、________。
参考答案：心率、 机体耗氧量 、主观感觉
―Hello！May I speak to Jack, please?
―Yes, speaking.
－Oh, I _______ your voice at first.
A．don’t recognize.
B．didn’t recognize.
C．hadn’t recognized.
D．haven’t recognized.
何谓石灰吸收过程？
