【简答题】一般情况下,市场调研的类型可以分为( )调研、( )调研、( )调研。
【单选题】Did the experiment find any differences ___________what children learned?
【判断题】The author believes the family rules which worked in his life should be learned or followed by the children.
【多选题】市场调研类型如果按调研对象的范围不同可以划分为( )
【多选题】保健食品的真菌菌种》名单中收录的灵芝菌种有( )。
【单选题】Did the experiment find any differences _____what children learned?