Which of the following is NOT one of the disadvantages of a longitudinal research?
A.The subjects may become irritated at repeated testing.
B.The participants in the study may not stay in one place for many years.
C.The behavior. of a subject in the study may be measured continuously for many years.
D.Social changes may be reflected in the behaviors of the subjects participating in the study.
第1题
A.存货编码
B.存货类别编码
C.仓库编码
D.部门编码
E.供应商编码
第5题
A.存货分类编码采用群码的方式进行设置的
B.其编码方案是在系统初始设置时确定的
C.先设置上级编码,再设置下级编码
D.存货分类设置是设置存货分类编码、存货分类名称及所属经济分类
第8题
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