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.

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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

单项选择题

William Fart's study and other studies show that ______.

A．social life provides an effective cure for illness.
B．being sociable helps improve one's quality of life.
C．women benefit more than men from marriage.
D．marriage contributes a great deal to longevity.