单项选择题

Laughter can be a way of body exercise if people ______.

A．laugh much more than they do in everyday
B．laugh much louder than they do in everyday
C．receive special training in how to laugh
D．learn to laugh while doing other exercises

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热门试题

单项选择题

The negative emotions stored inside will ______.

A．do harm to physical health
B．have bad influence on psychology
C．be let out through laughter only
D．fade away as time goes on

单项选择题

A laughter can arouse many others in the same group to laugh partly because ______.

A．laughter is a sign of open mind and freedom
B．people tend to laugh in a friendly atmosphere
C．people laugh back to show their good manners
D．laughter gives people a sense of belonging