下列哪个图有别于其他三个？()

A. 4个
B. 5个
C. 6个
D. 7个

A. the biological differences between men and women
B. the differences in social roles between men and women
C. the differences in living habits between men and women
D. the challenges men and women face from the point of view of biology

A. the difference in bone structure reflects differences in their social roles
B. men appear to be braver than women partly because of biological reasons
C. men have a larger appetite than women do
D. men fall ill more often than women because of their deep breathing

A. 31.55
B. 34.44
C. 37.33
D. 40.22