单项选择题

The passage is mainly written to ______

A．marriage can help our health.
B．all kinds of social networks have effects on our life.
C．social contact can be benefit of our longevity.
D．share our social networks with each other.

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热门试题

单项选择题

What does the author say about social networks

A．They have effects similar to those of a marriage.
B．They help develop people's community spirit.
C．They provide timely support for those in need.
D．They help relieve people of their life's burdens.

单项选择题

Employers' attitudes to their workers are affected by ______.

A．attitudes to service
B．working attitudes
C．shopping method
D．service quality