我国的专门法律监督机关是各级人民检察院。 ( )
参考答案：对
碘值是衡量油品中（）多少的一项重要指标。
A、饱和烃
B、正构烷烃
C、环烷烃
D、不饱和烃
Sigmund Freud was the first psychologist that made a careful study of ______ mind.
