A:形成原因
B:形成源地
C:移动路径
D:移动快慢
在探究“比较不同物质吸热的情况”的实验中,实验装置如图所示.
设一次函数y=f(x)(x∈R)为奇函数,且f(1)=12,f(5)=( )
To his ____(快乐,喜悦), his son was admitted to a famous university.