单项选择题

Which one is the best title for the passage（）

A．Boiling Point of Liquids.
B．Three States of Water.
C．What Is One Atmosphere.
D．Temperature of Liquids.

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单项选择题
The liquid boils only when （）

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
单项选择题
Which statement of the following is false according to the passage（）

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.
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