在我国，投资者于周五申购或转换转入的基金份额享有周五和周六、周日的利润；投资者于周五赎回或转换转出的基金份额不享有周五和周六、周日的利润。（）

A client hospitalized with pneumonia has thick, tenacious secretions. To help liquefy these secretions, the nurse should （）.

A．turn the client every 2 hours.

B．elevate the head of the bed 30 degrees.

C．encourage increased fluid intake.

D．maintain a cool room temperature.