单项选择题

People are likely to be very active and aggressive

A．when it is rainy and cloudy.
B．as humidity increases.
C．when there is little moisture.
D．as temperature decreases.
<上一题 目录 下一题>
热门 试题

单项选择题
People are in low spirits
A．during the night.
B．on clear and fine days.
C．on hot and sunny days.
D．during cold and stormy weather.
单项选择题
The following are all optimum conditions except
A．little sky cover.
B．higher temperature.
C．higher humidity.
D．lower temperature.
相关试题