Which of the following is used in an IBM Blade Center to provide cooling？（） A: Fans for each blade B: Chilled Water C: Blowers D: Freon

Which of the following is used in an IBM Blade Center to provide cooling？（） A: Fans for each blade B: Chilled Water C: Blowers D: Freo

What’s the most popular heating system according to the engineer A: Every room has a heater. B: The Central room has a heater. C: A heat chamber heats air and passes the warm air through ducts and openings into rooms. D: The rooms are installed with blowers or convection.