---Would you like something about my foreign teacher?

---Oh,I remember _____ about her yesterday.

A．telling

B．being told

C．to tell

D．having told

用红外点温仪测量物体表面温升时，对于不同物体应选用不同的（）系数，铜、橡胶、陶瓷的反射系数为（）。