英语翻译If we take this at face value,it is just not clear what

英语翻译
If we take this at face value,it is just not clear what becomes of APT in this context.How could one argue for the validity of the model as originally presented and at the same time maintain that the number of " common ”factors is indeterminate If it has been conceded earlier that individual significance tests are meaningless ,who is to decide whether with the addition of the " other " cosmetics firm what we are getting as a " significant " risk premium is not for the " irrelevant " cosmetics factor What if we replace cosmetics 勿automobiles or 01is A proper procedure in each case would be to allow for the presence of group factors ,one wonders ,of course ,whether we would have been treated to a different menu if the original paper used 60 security groups ; perhaps we would have been told that five to seven factors were significant .What is more difficult to surmise is how they would have reacted to the 17 factors or 50 which would have resulted if their original paper used 90 security groups .