There is plenty of snow outside. Put on your sweater. It is         cold today.

A．too much

B．too many

C．much too

D．many too

以分子运动观点和分子间物理缠结概念说明非晶态聚合物随着温度升高粘弹行为的4个区域，并讨论分子量对应力松弛模量-温度曲线的影响规律。