单项选择题
A．the temperature is raised B．the bubbles of vapor form below the surface C．the temperature of the liquid is raised enough D．the temperature of the liquid is near 100 Celsius
A．The boiling point of water on a mountain three kilometers high is only 90 Celsius. B．It would take you longer to cook potatoes in boiling water on the mountain than it would at sea level. C．When the temperature of a liquid is raised enough, the liquid boils. D．The boiling point of water on a mountain six kilometers high is 95 Celsius.
A．the mixture of gases that surrounds any heavenly body B．one kilogram per square centimeter C．the feeling among a group or produced by the surroundings D．producing feelings of mysterious beauty or strangeness