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[单选题]
A. fashionB. characters C. personality D. characteristics
A.fashion
B. characters
C. personality
D. characteristics
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A.fashion
B. characters
C. personality
D. characteristics
A. in turn
B. by return
C. by turns
D. in return
B.(P/F,i,n)=(A./F,i,n)×(P/A.,i,n)
C.(P/F,i,n)=(P/F,i,n1)×(A./F,i,n2)(n1+n2=n)
D.(A./P,i,n)=(F/P,i,n)×(A./F,i,n)
E.(A./F,i,n)=(P/F,i,n)×(A./P.i,n)