单项选择题

The nursing staff ______.

A．are central to the medical staff
B．play an important role in caring for patients
C．can work effectively without physicians
D．are always in close contact with the patients

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单项选择题

The topic of the 4th paragraph is that ______.

A．one problem of loneliness is a person's social contacts
B．we depend on various people for different reasons
C．lonely people don’t have many social problems
D．lonely people don’t have many friends

单项选择题

How would you treat temporary loneliness according to the passage

A．Talk to friends.
B．Just ignore it.
C．Go to see a doctor.
D．Ask your teachers for guidance.