C—“In the case of mild illness, patients should be provided with supportive care at home b

C
—“In the case of mild illness, patients should be provided with supportive care at home by a designated caregiver and only referred to health care facilities if they deteriorate or develop danger signs.
—Such danger signs may include: weakness or inability to stand, lethargy, unconsciousness, convulsions, very difficult or obstructed breathing or shortness of breath, inability to drink fluids, high fever.
—Treatment at home should entail(需要) rest, fluids(液体), medication for fever, and good nutrition, with patients kept separate from other people except one designated carer who should wash their hands and household surfaces frequently.
—It is more important in the home that patient wears a mask than the caregiver. The mask need not be worn all day and only when close contact with the caregiver is anticipated.
—If enough masks are available, caregivers should also use them to cover their mouth and nose during close contact.
—Windows should be kept open to allow good ventilation(通风).
49．The passage is written to      .
A．offer some suggestions for the treatment of mild patients
B．give tips on how to wear masks
C．show danger signs of infected patients
D．tell people how to take care of mild patients
50．The illness mentioned in the passage may    .
A．have no cure           B．have no prevention
C．be highly contagious       D．be deadly
51．The passage may be taken form     .
A．a doctor’s note B．a patient’s description
C．guidelines from a government D．guidelines from a health organization
52．When should the caregivers wear masks?
A．When the patients are present.
B．When close contact with patients is a must.
C．All day long.          
D．When there is no good ventilation.49---52   A CD B