消费心理学研究的主体是（）
D
暂无解析
Theaeroplane____shewastravelingwasdelayedforthreehoursatleast.
Hehadalongtelephone( ).
Shonaneedstodofurtherresearchinorderto____.
Shonasaysthatinherquestionnaireheraimwas____.
Hepaidtheboy$10forwashingtenwindows,mostof____hadn'tbeencleanedforatleastayear.