The sign test was used to evaluate the difference in subjectively estimated prevalence of ( ) projects between epidemiological papers and papers from clinical trials.
A.fraud B.fraudulent C.fragment D.fragmented正确答案B
The sign test was used to evaluate the difference in subjectively estimated prevalence of ( ) projects between epidemiological papers and papers from clinical trials.
A.fraud B.fraudulent C.fragment D.fragmented正确答案B