Thd temperature of a substance may be changed under a(n) ___of conditions!

问题描述:

Thd temperature of a substance may be changed under a(n) ___of conditions!
A.affair B.event C.matter D.variety

选D a variety of是“一系列”的意思全句的意思是一段距离内的温度可能由于一系列的因素而改变