A．All people are less intelligent in summer than in the other seasons of the year.B．Heat has no effect on people’s mental abilities.C．People living near the equator are the most intelligent.D．Both climate and temperature exert impact on people’s intelligence.
A．All people are less intelligent in summer than in the other seasons of the year.
B．Heat has no effect on people’s mental abilities.
C．People living near the equator are the most intelligent.
D．Both climate and temperature exert impact on people’s intelligence.